Categories
Audio Mastering

How to Measure LUFS on Your Master

To measure LUFS, run the finished bounce through a meter that follows ITU-R BS.1770 and read the integrated value, which is the whole-song average that streaming services use for normalisation. You can do it in a few seconds with the free Solar Heavy online LUFS meter: drop the file in and it reports integrated LUFS, loudness range and true peak, and shows what the major platforms will do to your level.

The number on its own is only half the job. Below is how to take a reliable reading, how to interpret each value, and how to act on it in the mix or the master.

What LUFS actually measures

LUFS (Loudness Units relative to Full Scale) is a perceived-loudness measurement. Unlike a peak meter, it applies K-weighting, a filter that reduces the influence of deep lows and lifts the upper mids where the ear is most sensitive. That is why a bass-heavy trap beat and a bright acoustic track can peak at the same level and still measure several LU apart.

If you want the full background, What Is LUFS? covers the standard itself. This post is about using the measurement.

The three time windows

  • Integrated: the average of the entire file, with silence and very quiet passages gated out. This is the number Spotify, Apple Music and YouTube act on.
  • Short-term: a 3-second window. Useful for checking whether your chorus is much louder than your verse.
  • Momentary: a 400 ms window. Handy for spotting single hits or drops that jump out.

Loudness range and true peak

Loudness range (LRA) describes the spread between the quieter and louder parts of the song, in LU. A heavily limited pop record often sits under 6 LU, while an orchestral piece can go past 15.

True peak (dBTP) is the highest level once the signal is oversampled, so it catches peaks that land between samples. Those inter-sample peaks are what clip when a WAV gets encoded to AAC or MP3. More on that in Inter-Sample and True Peak Metering.

How to measure LUFS with the free meter

  1. Bounce the final master at the sample rate and bit depth you will deliver. Measure the exact file you plan to upload, not a live playback of your session, so plugin latency and bus routing can’t skew the reading.
  2. Open the LUFS meter and drop the file in. Decoding and analysis happen in your browser, so unreleased music never leaves your machine.
  3. Read integrated LUFS first. This is your headline figure.
  4. Check true peak. Aim for −1 dBTP or lower. Very loud masters often need −2 dBTP to stay clean after encoding.
  5. Look at LRA. If it is far lower than your reference tracks, your limiter or bus compression is probably flattening the arrangement.
  6. Read the platform preview. It shows how much each service will turn your track down (or leave it alone), which tells you whether extra loudness is buying you anything.

The meter follows ITU-R BS.1770-4 and EBU R128 (K-weighting, 400 ms blocks with 75% overlap, a −70 LUFS absolute gate and a −10 LU relative gate), and its integrated, LRA and true-peak readings match ffmpeg’s ebur128 filter to within 0.1 LU on test material.

What to do with the reading

If the master is much louder than about −9 LUFS

Most services normalise to roughly −14 LUFS (Apple Music to about −16), so a −7 LUFS master will simply be turned down. What it keeps is the damage: squashed transients and a flat LRA. Pull the limiter’s input gain back 2–3 dB and A/B against the louder version at matched loudness. If the quieter one punches harder once levels are matched, keep it.

If it is quieter than your genre references

Measure two or three commercial songs in the same style first. Then work upstream rather than piling on limiting:

  • Tame the sharpest transients on the drum bus with a fast compressor or clipper so the limiter has less to catch.
  • Check the low end. Sub energy below 40 Hz eats headroom without adding much perceived loudness. A gentle high-pass on the master or the bass bus often frees 1–2 dB.
  • Make sure the midrange is dense enough. Loudness perception lives in roughly 1–5 kHz, so a thin mid-range will measure quiet no matter how hard you limit.

If true peak is over −1 dBTP

Switch your limiter to true-peak mode (most modern ones have it) or lower its ceiling. Re-measure after the change, because oversampled limiters can still overshoot slightly on dense material. How to Master Music to Get an Exact True Peak and LUFS Reading walks through the process step by step.

Tips from the mastering chair

  • Measure the whole song, never a loop. Integrated loudness of the drop alone will read 2–4 LU hotter than the full track.
  • Match loudness before judging. Your ears will always prefer the louder version. Use the meter to bring two versions to the same integrated value, then decide.
  • Treat short-term LUFS as an arrangement tool. If your chorus is only 0.5 LU louder than the verse, the drop may not land. A 2–3 LU lift usually feels intentional.
  • Keep a note of your reference values. Writing down integrated LUFS, LRA and true peak for a few favourite records in your genre gives you a realistic target zone instead of a single magic number.
  • Don’t master to the meter. Pick the loudness that suits the song. A dynamic ballad at −13 LUFS can sound bigger on Spotify than a crushed one at −8.

Who this is for

  • Artists releasing on their own who want to check a master before it goes to a distributor.
  • Producers sending beats who want consistent levels across a beat pack.
  • Mix engineers checking how a mix-bus limiter is behaving before the track goes to mastering.
  • Anyone comparing masters, such as an old version against a revision.

If you’d rather hand the loudness decisions to someone else, Solar Heavy also offers single track audio mastering.

Frequently asked questions

What LUFS should I master to?

There is no single correct number. Spotify, YouTube, Tidal and Amazon Music normalise to about −14 LUFS and Apple Music to about −16 LUFS, and many modern masters sit between −14 and −9 LUFS integrated. Choose what suits the song and keep true peak at −1 dBTP or lower.

Is integrated LUFS the same as RMS?

No. RMS is an unweighted average of signal power, while LUFS applies K-weighting and gating to reflect how loud music sounds to people. Two tracks with the same RMS can measure several LU apart. LUFS vs RMS vs dBFS explains the difference.

Why does my DAW meter show a different LUFS value?

Usually because it is showing short-term or momentary loudness, or it was reset partway through playback. Integrated loudness has to be measured over the whole file from start to finish.

Does the LUFS meter upload my song?

No. The file is decoded and analysed in your browser and never leaves your device.

What is a good loudness range?

It depends on genre. Heavily limited pop and EDM often land under 6 LU. Acoustic, jazz and film music commonly sit higher. Compare against references in your style rather than chasing a fixed figure.

Categories
Audio Production

How to Use Slant Rhymes in Song Lyrics

Here is how to use slant rhymes: pair words that share some sounds but not all, usually the stressed vowel or the final consonant (time and line, heart and hard), and place them where a perfect rhyme would feel forced or predictable. Slant rhymes give you far more word choices, so you can say what you mean instead of what rhymes. The free rhyme finder lists perfect and near rhymes side by side, grouped by syllable count, with a syllable counter for whole lyrics.

Perfect rhymes vs slant rhymes

Type What matches Examples
Perfect rhyme Every sound from the last stressed vowel to the end cat / hat, light / night
Vowel (assonant) slant rhyme The stressed vowel, with different consonants after it time / line, rain / made
Consonant slant rhyme The ending consonant, with a different vowel heart / hurt, black / block
Mixed near rhyme Similar vowel and similar consonant heart / hard, home / phone

Slant rhymes are also called near rhymes, half rhymes or imperfect rhymes. They are everywhere in pop, rock, hip-hop and folk, because singing blurs small differences in consonants and listeners hear the vowel match as a rhyme.

Why songwriters rely on slant rhymes

  • More honest lines. Perfect rhymes for a word are limited. Searching near rhymes opens dozens of options, so the meaning leads and the rhyme follows.
  • Less predictable endings. When a listener can guess the rhyme word before it arrives, the line loses impact. A near rhyme keeps the ear interested.
  • Natural, conversational tone. Many great lyrics sound like speech; forced perfect rhymes make them sound like greeting cards.
  • Multisyllabic flows. In rap especially, matching vowel sounds across several syllables matters more than matching every consonant.

Step 1: Write the line you mean first

Start with what you want to say, not the rhyme. Write the first line of the pair in plain words, then underline the word at the end you will rhyme against. If that word has few rhymes, consider moving a different word to the end of the line before you go searching.

Step 2: Find the stressed vowel

Say the end word slowly and find the vowel that carries the stress. In “together”, the stress falls on the second syllable, so the important sound is the “eh” of “-geth-“. Slant rhymes need to match that stressed vowel more than anything else; matching an unstressed ending alone will not sound like a rhyme.

Step 3: Search perfect and near rhymes together

Type the word into the rhyme finder and press Find rhymes. You get perfect rhymes and near or slant rhymes, grouped by syllable count. Useful features while writing:

  • Click any result to look up its rhymes and follow a chain of ideas.
  • Filter by syllables so the new word fits the rhythm of the line.
  • Turn on consonance to see words that share the ending consonant, which is the second family of slant rhymes.

The dictionary of about 20,000 common English words is built in and loads once in your browser, so lookups are instant and nothing is sent to a server.

Step 4: Choose by meaning, then by sound

From the list, pick words that serve the story first. Among those, prefer the one whose vowel matches most strongly when sung. Sing both lines over the melody rather than reading them; a pairing that looks weak on paper often sounds fine when held on a note, and the reverse happens too.

Step 5: Match the syllables

A good rhyme can still fall flat if the lines have different rhythms. Paste your lyrics into the rhyme finder’s syllable counter to see the count for every line. It looks up each word in its pronunciation dictionary and estimates words it does not know from their spelling. Lines that answer each other across verses usually work best with similar counts and stress patterns, so use the counts to spot a line that is too long or too short for the melody.

Worked example

First line: “I keep your number in my phone”. Perfect rhymes for “phone” (alone, stone, known, bone) push toward familiar ideas. Searching near rhymes adds words like “home”, “cold”, “go” and “road”, which share the long “o” vowel. If the song is about distance, “I still don’t know the way back home” keeps the meaning and lands a natural slant rhyme. Check the syllable counter: eight syllables in each line, so both fit the same melodic phrase.

Where to place slant rhymes

  • Verses carry story and detail, so the freedom of near rhymes helps most here.
  • Choruses often benefit from at least one strong perfect rhyme for a satisfying, memorable landing.
  • Internal rhymes inside a line, using assonance, add flow without drawing attention to themselves.
  • Contrast works: a section of slant rhymes followed by a perfect rhyme makes the perfect one hit harder.

Three exercises to train your rhyme ear

  1. Rhyme ladder. Pick a common end word, look it up, then click a near rhyme and look that up. After five steps, write a couplet using the first and last words. It forces you away from the obvious pairs.
  2. Rewrite a cliché. Take a tired pair such as fire and desire and replace one word with a slant rhyme that changes the image. Notice how the line becomes more specific.
  3. Vowel-only verse. Write four lines where every end word shares the same stressed vowel but no two share the final consonant. Sing it and listen to how connected it still sounds.

Keep the results in a notebook or notes app; good near-rhyme pairs you discover in practice often turn up later in real songs. Ten minutes of this before a writing session warms up the same instincts you use when a line will not land.

Common mistakes

  • Matching only unstressed endings. “Happy” and “money” share “-y” but not the stressed vowel; it rarely reads as a rhyme.
  • Choosing sound over sense. A rhyme that changes your meaning costs more than an imperfect one.
  • Ignoring rhythm. Rhyming lines with very different syllable counts can feel off even when the words match.
  • Never singing the draft. Always test the pair on the melody.
  • Using only slant rhymes in the hook. Hooks usually need a firm landing somewhere.

FAQ

What is a near rhyme?

A near rhyme, also called a slant rhyme, shares some sounds but not all, usually the vowel or the final consonant, like time and line or heart and hard.

What is the difference between a perfect rhyme and a slant rhyme?

A perfect rhyme matches every sound from the last stressed vowel to the end. A slant rhyme matches only part of it.

Do professional songwriters use slant rhymes?

Yes. They are common in every popular genre, because singing smooths over small differences in consonants.

How does the syllable counter work?

It looks up each word in a built-in pronunciation dictionary and counts its vowel sounds, estimating unknown words from their spelling.

Keep building your craft with our songwriting guide, see the definition of half rhyme, and if you write for rap, our tips on recording rap vocals pick up where the lyric leaves off. Need a title once the lyric is done? Try the song name generator. Stuck on a line right now? Open the free rhyme finder.

Categories
Audio Production

Pomodoro Technique for Music Production: Focus Guide

The Pomodoro technique for music production means working on one music task in a timed focus block, traditionally 25 minutes, then taking a 5-minute break, with a longer break of 15 to 30 minutes after every four blocks. For producers it does two jobs at once: it stops sessions from drifting into endless tweaking, and the breaks rest your ears so you judge the mix more accurately. The free Pomodoro timer for musicians runs the cycle for you in a browser tab.

How the Pomodoro technique works

The method was developed by Francesco Cirillo and named after a tomato-shaped kitchen timer. The core loop is simple:

  1. Choose one task.
  2. Start a timer for one focus block.
  3. Work on that task only until the timer ends.
  4. Take a short break.
  5. After four blocks, take a longer break.

The value is not in the exact numbers. It is in deciding what you will work on before you start, protecting that time from distractions, and stopping regularly enough that you can step back and assess.

Why it suits music work

  • Ear fatigue is real. After long stretches of listening, especially at higher volume, your perception of brightness, bass and balance shifts. Short breaks help you come back with fresher ears and catch problems you were starting to ignore.
  • Producing invites endless options. There is always another plugin, preset or sound to audition. A timer with a single task attached keeps you moving toward a finished track.
  • Creative and technical tasks need different modes. Splitting a session into blocks makes it easier to separate writing from mixing so one does not stall the other.
  • Progress becomes visible. Counting completed blocks shows how much focused time a song actually takes, which helps you plan future projects.

Good tasks for one focus block

A block works best when the task is specific enough to finish or clearly advance in one sitting:

Stage Example task for one block
Writing Write the second verse lyric; find a chorus melody
Practice Scales at a set tempo with the online metronome
Sound design Build one lead patch; layer the kick
Arrangement Lay out the song structure; build the pre-chorus
Editing Comp lead vocal takes; tighten drum timing
Mixing Balance the drum bus; EQ the vocal against the music
Admin Write release metadata; prepare a pitch

“Work on the song” is too vague. “Finish the bridge chords” is a good block.

A sample session plan

Here is one way to structure a four-block session on a mix in progress:

  1. Block 1: Static balance with faders and panning only.
  2. Short break: Leave the room or sit in silence. Avoid headphones.
  3. Block 2: EQ and compression on the drums and bass.
  4. Short break.
  5. Block 3: Vocal processing and effects.
  6. Short break.
  7. Block 4: Reference check against a level-matched commercial track and write a list of fixes.
  8. Long break: Step away for a longer stretch before deciding on the list.

Adjusting the lengths

Twenty-five minutes is the traditional block, but it is not a rule. Many producers prefer longer blocks for writing, when ideas take time to build, and shorter ones for detailed mixing, when ears tire faster. In the Pomodoro timer you can set the focus, short break and long break lengths in minutes and choose how many focus sessions come before a long break. You can also start sessions automatically, mute the chime, or turn on optional desktop notifications. The countdown shows in the browser tab, and your daily and all-time session counts are saved only on your device.

What to do in the breaks

  • Rest your ears: silence is better than switching to music on headphones.
  • Stand up, stretch and look at something far away to rest your eyes from the screen.
  • Drink water.
  • Do not start a second task “just for a minute”; the break is part of the method.

Use your block count to plan projects

After a few songs, your saved session counts become a planning tool. If a mix usually takes you around a dozen focus blocks, you can estimate how many days an EP needs and spot when a song is eating far more time than usual, which is often a sign the arrangement, not the mix, needs work. Our article on how long mixing an album takes covers the bigger picture of scheduling a full project. Your own numbers will always be more useful than a general rule, because they reflect your speed, your gear and your genre.

Protect your hearing as well as your time

Breaks help with fatigue, but listening level matters too. Mix at moderate volume most of the time and turn up only briefly for checks. Use our dB meter to see roughly how loud your room is, and take an occasional hearing test to keep track of changes.

Common mistakes

  • Starting a block without a task. Decide what “done” looks like before you press start.
  • Skipping breaks when it is going well. That is exactly when ear fatigue sneaks up. Note your next step and take the break.
  • Spending breaks on headphones. Your ears need silence to recover.
  • Mixing and writing in the same block. Switching modes kills momentum.
  • Treating the timer as a judge. An unfinished block is still progress; carry it into the next one.

FAQ

What is the Pomodoro technique?

A time-management method: focused work blocks of traditionally 25 minutes, a 5-minute break after each, and a longer 15 to 30 minute break after every four.

Is Pomodoro good for music production?

Yes. Short focused blocks help you finish ideas, and regular breaks rest your ears so you judge your mix more accurately.

Does the timer keep running in a background tab?

Yes. It works from the real end time rather than counting ticks, so it stays accurate when the browser slows background tabs.

How long should a music practice session be?

It depends on the task and on you. Several focused blocks with breaks usually beat one long, unfocused session.

Find more ways to finish tracks faster in our workflow and productivity guide, and read about the method’s background in the Pomodoro Technique overview. Ready for your next session? Start the free Pomodoro timer and pick one task.

Categories
Audio Production

How Big Are Audio Files? WAV, FLAC and MP3 Sizes

How big are audio files? An uncompressed stereo WAV at CD quality (44.1 kHz, 16-bit) takes about 10.6 MB per minute, a 24-bit 48 kHz stereo WAV about 17.3 MB per minute, and a 320 kbps MP3 about 2.4 MB per minute. The size depends on sample rate, bit depth, channel count and length, plus the format. The free audio file size calculator works out WAV, FLAC and MP3 sizes for any settings.

The formula for uncompressed audio

WAV and AIFF files store every sample, so their size is simple to predict:

bytes = sample rate × (bit depth ÷ 8) × channels × seconds

Divide the result by 1,000,000 for megabytes. For one minute of CD-quality stereo: 44,100 × 2 × 2 × 60 = 10,584,000 bytes, or 10.58 MB. The same calculation gives the bit rate: 44,100 × 16 × 2 = 1,411,200 bits per second, the familiar 1,411 kbps.

WAV sizes per minute

Format Stereo, per minute Mono, per minute
44.1 kHz / 16-bit 10.58 MB 5.29 MB
44.1 kHz / 24-bit 15.88 MB 7.94 MB
48 kHz / 24-bit 17.28 MB 8.64 MB
48 kHz / 32-bit float 23.04 MB 11.52 MB
96 kHz / 24-bit 34.56 MB 17.28 MB
192 kHz / 24-bit 69.12 MB 34.56 MB

Doubling the sample rate doubles the size, and going from 16-bit to 24-bit adds half again.

Compressed formats: FLAC and MP3

  • FLAC is lossless: it decodes back to exactly the same audio as the WAV. It usually ends up around 50 to 60% of the WAV size, depending on how dense the music is. Quiet, sparse material compresses more; loud, dense masters compress less. Details of the format are published by the Xiph.Org FLAC project.
  • MP3 is lossy and set by bit rate, so its size is fixed regardless of the content: bit rate × seconds ÷ 8. At 320 kbps that is 2.4 MB per minute; at 128 kbps, 0.96 MB per minute.

Worked example: a full session

Imagine a 4-minute song recorded at 48 kHz / 24-bit with 24 mono tracks. Each mono track is 8.64 MB per minute, so 24 tracks for 4 minutes is 24 × 8.64 × 4 ≈ 829 MB of raw audio, before any extra takes, comps or bounces. Record three takes of everything and the session passes 2.4 GB. A stereo master of the same song at 44.1 kHz / 16-bit is about 42 MB, a FLAC of it roughly 21–25 MB, and a 320 kbps MP3 about 9.6 MB.

Use the calculator to plug in your own session: choose a sample rate from 44.1 to 192 kHz, a bit depth of 16, 24 or 32-bit float, mono or stereo, and the length. It shows the size per minute, the total and the bit rate, with FLAC and MP3 estimates next to it.

MB vs MiB: why Windows shows a smaller number

A megabyte (MB) is 1,000,000 bytes; a mebibyte (MiB) is 1,048,576 bytes. Windows uses MiB but labels it “MB”, so the same file looks about 5% smaller there than on macOS or in the calculator. One minute of CD audio is 10.58 MB, which Windows shows as 10.09.

Why file size matters for musicians

  • Drive space. Multitrack sessions at high sample rates fill drives quickly. Plan storage and backups before a big recording day. Our guide on how to back up audio files covers the backup side.
  • Upload limits. Email attachments, some sharing links and some distribution or contest platforms cap file sizes. Knowing the size in advance tells you whether to send a WAV, a FLAC or a link.
  • Mastering deliveries. Send mix files for mastering as WAV or AIFF at the session’s sample rate and bit depth, not as MP3. Our track preparation guide lists what to send.
  • Streaming and transfer. Bit rate tells you how much data playback uses and how long a transfer takes.

Does a higher sample rate sound better?

Higher sample rates capture higher frequencies and can help some processing, but they also multiply file size and CPU load. Many producers work at 44.1 or 48 kHz with 24-bit depth for a good balance. Bit depth mostly affects noise floor and headroom while recording; 24-bit gives plenty of room for home and project studios. Choose settings for your workflow, then let the calculator tell you what it will cost in space.

How to keep session sizes under control

  • Record mono sources as mono. A vocal, a bass DI or a single guitar mic does not need a stereo track, and recording it in stereo doubles the file for no benefit.
  • Clean up unused takes. Most DAWs can list or remove audio files that are no longer used in the arrangement. Back up first, then tidy.
  • Archive finished projects as FLAC. Lossless compression saves space on long-term storage without losing quality, as long as your DAW or converter can turn it back into WAV.
  • Bounce heavy virtual instruments only when needed. Printing every synth to audio adds files; keep MIDI where it is light enough to run live.

Common mistakes

  • Forgetting channels. Stereo is twice the size of mono at the same settings.
  • Sending MP3s for mixing or mastering. Lossy files throw away information you cannot get back.
  • Comparing MB and MiB. Different operating systems report sizes differently.
  • Underestimating takes. Comps, alternate takes and bounces can multiply session size.

FAQ

How big is one minute of CD-quality audio?

44.1 kHz, 16-bit stereo is 10.58 MB per minute, at 1,411.2 kbps.

How big is a 24-bit 48 kHz stereo WAV?

About 17.28 MB per minute. At 96 kHz it doubles to about 34.56 MB per minute.

How much smaller is FLAC than WAV?

Usually around 50 to 60% of the WAV size, depending on the music.

How big is a 3-minute MP3?

At 320 kbps about 7.2 MB, and at 128 kbps about 2.9 MB.

Learn more about capturing clean audio in our recording guide. Planning a session or a delivery? Get exact numbers from the free audio file size calculator.

Categories
Audio Mixing

How to Check Mono Compatibility in Your Mix

Here is how to check mono compatibility: sum your mix’s left and right channels to mono, measure how much level and detail you lose, and look at the phase correlation over the whole song to find sections that go out of phase. The free stereo width and phase checker does all three in your browser: drop in a bounce and it shows correlation, mono collapse loss, side-to-mid balance and a correlation graph, with a Mono switch so you can hear the result.

Why mono compatibility matters

A lot of real-world playback is mono or close to it: phone speakers, many Bluetooth speakers, some club and venue systems, and any situation where the listener is far from a stereo pair. When left and right are added together, any part that is out of phase between the channels partly cancels. Wide synths can shrink, reverb can vanish and, in the worst cases, the bass or a lead part almost disappears. A mix that sounds huge on headphones can fall apart on a phone if you never check it.

Key terms

Term What it means
Phase correlation How similar left and right are, from +1 (identical, mono) through 0 (unrelated) to −1 (opposite polarity).
Mono collapse loss How much quieter the mix gets when summed to mono.
Mid What left and right have in common (L + R).
Side The difference between left and right (L − R): the stereo information.
Stereo width How much side there is relative to mid.

For the theory behind cancellation, see our explainer on phase cancellation.

Step 1: Bounce the mix

Export a stereo bounce of the full mix or master, at the same sample rate and bit depth as your project. Check the whole song rather than a loop, because phase problems often appear only in one section, such as a wide chorus or a breakdown with a stereo pad.

Step 2: Load it into the phase checker

Open the stereo and phase checker and drop in the file. It is decoded with your browser’s built-in audio decoder and analysed on your device; nothing is uploaded or stored.

Step 3: Read the overall numbers

  • Phase correlation. Most finished mixes sit roughly between +0.3 and +0.9. Readings near 0 mean very wide or uncorrelated material. Anything below 0 means parts of the mix will cancel in mono.
  • Mono collapse loss. A mono signal loses 0 dB when summed. A hard-panned or fully uncorrelated signal loses about 3 dB. A polarity-inverted channel can disappear completely. A small loss is normal; a large one tells you a lot of the mix lives in the sides.
  • Side-to-mid balance and width. Side close to or above mid means a very wide mix, which is more likely to change in mono.

Step 4: Find the problem sections on the graph

The correlation graph runs across the whole song. Look for dips toward or below zero and note the time. Then jump to that point and listen. Common culprits:

  • a stereo widener or chorus on a synth or pad;
  • a double-tracked guitar or vocal where one take is polarity-flipped;
  • a stereo-recorded instrument with mics at different distances;
  • stereo reverb or a wide delay that dominates a breakdown;
  • a bass or 808 processed with a stereo effect.

Step 5: Listen in mono

Press play and switch Mono on. Numbers tell you where to look; your ears tell you whether it matters. Listen for:

  • the vocal or lead getting louder relative to everything else (a sign the backing is wide);
  • a part that drops away or turns thin and hollow;
  • bass and kick losing weight;
  • reverb tails disappearing.

Some change is expected. The goal is that every important part stays audible and the balance still works.

Step 6: Fix and re-check

  1. Check polarity on double-tracked or multi-miked parts. Flip one side and keep whichever sounds fuller in mono.
  2. Keep kick and bass mono. Low frequencies carry the most energy and are the most damaging when they cancel.
  3. Reduce widener amounts on pads and synths, or apply them only above the low mids.
  4. Use mid/side EQ to narrow low frequencies in the side channel on wide buses.
  5. Re-bounce and re-check. Compare correlation and collapse loss with the first pass.

Worked example

A pop mix reads +0.6 overall, but the graph dips below zero during each chorus. In mono, the chorus synth pad almost vanishes. The pad uses a stereo chorus effect with a wide setting. Halving the chorus width and high-passing the pad’s side channel below a few hundred hertz brings the chorus correlation back above zero, and in mono the pad now stays audible while the stereo version still sounds wide.

Should you mix in mono?

Some engineers balance levels and EQ in mono first, because masking is easier to hear when everything shares one position. Others mix in stereo and check mono at milestones. Either works, as long as you check. Our article on mixing in mono weighs the pros and cons.

Check stems and buses, not just the mix

When the full mix shows a problem but you cannot hear which part causes it, bounce the suspect buses on their own: drums, music, vocals and effects returns. Run each one through the checker. A drum bus with room mics often reads lower correlation than you expect, and an effects return with a wide reverb can read close to zero on its own. That is fine for a return, as long as the dry parts underneath stay solid in mono. Narrowing down to one bus is usually faster than muting tracks one at a time.

When a wide reading is fine

Not every low or fluctuating reading is a fault. Ambient intros, reverb tails, stereo room recordings and sound-design transitions are meant to be wide, and short dips during those moments rarely hurt the listener. What matters is that the parts carrying the song, such as the vocal, the bass, the kick, the snare and the main hook, stay strong in mono. If those survive the mono switch and the overall correlation stays positive, a little width in the background is a creative choice rather than a problem.

Common mistakes

  • Checking only a loop. Phase problems are often section-specific.
  • Chasing +1 correlation. A fully mono mix is safe but loses the width you want. Aim for a positive, stable reading.
  • Widening the low end. Stereo bass is one of the most common causes of mono collapse.
  • Ignoring polarity on doubles. One flipped mic can hollow out a whole part.
  • Judging only by numbers. Always listen in mono as well.

FAQ

What is a good phase correlation for a mix?

Most finished mixes sit between about +0.3 and +0.9. Below 0 means parts will cancel in mono.

What does mono collapse loss mean?

It is how much quieter the mix gets when left and right are added together.

Is my audio uploaded when I use the checker?

No. The file is decoded and analysed on your device.

Why does my mix sound different in mono?

Out-of-phase stereo content cancels when summed, so wide effects, reverbs and doubled parts change level or tone.

For more balance and stereo technique, read our mixing guide and the background on phase in waves. Before you send your next bounce out, run it through the free stereo and phase checker.

Categories
Audio Mixing

EQ Cheat Sheet: What Each Frequency Range Does

An EQ cheat sheet maps the audible spectrum, roughly 20 Hz to 20 kHz, into named ranges (sub, bass, low mids, mids, upper mids, presence and air) and tells you what each range adds or causes in a mix. Use it as a starting point for where to listen, then let your ears make the final call. The interactive EQ frequency chart shows these bands for each instrument on a real logarithmic scale.

The EQ cheat sheet at a glance

These ranges are approximate and overlap. Different sources draw the lines in slightly different places, so treat them as zones to search rather than exact settings.

Range Approx. frequencies Adds Too much causes
Sub 20–60 Hz Weight you feel more than hear Rumble, wasted headroom
Bass 60–250 Hz Warmth, kick and bass body Boom, masking
Low mids 250–500 Hz Fullness Mud, boxiness
Mids 500 Hz–2 kHz Tone and character Honk, nasal sound
Upper mids 2–5 kHz Presence, attack, clarity Harshness, listening fatigue
Presence / sibilance 5–10 kHz Definition, edge Sibilance, brittle cymbals
Air 10–20 kHz Openness, sheen Hiss, thinness

Instrument by instrument

The same ranges mean different things on different sources. These are common starting zones; the EQ frequency chart lets you pick an instrument and hover each band to read what it does and a sensible first move.

Vocals

  • High-pass below the lowest sung note to remove rumble and handling noise.
  • Mud and boxiness around 200–500 Hz.
  • Presence and lyric clarity around 2–5 kHz; a gentle lift near 3 kHz helps words cut through.
  • Sibilance around 5–8 kHz, often better handled with a de-esser than a static cut.
  • Air above 10 kHz with a gentle high shelf.

Kick drum

  • Body and punch around 60–100 Hz.
  • Boxy, cardboard tone in the low mids, often somewhere between 200 and 500 Hz.
  • Beater click around 2–5 kHz, which helps the kick read on small speakers.

Bass and 808

  • Fundamental and weight below about 100 Hz.
  • Growl and note definition in the low mids and mids, which is what makes bass audible on phones.
  • Decide whether kick or bass owns the lowest octave, and give the other a little space there.

Guitars, piano and pads

  • High-pass to clear space for bass and kick when the part is not the low-end anchor.
  • Small cuts in the 200–500 Hz zone clean up crowded arrangements.
  • Upper mids carry pick attack and hammer detail; boost sparingly.

How to use a cheat sheet without over-EQing

  1. Listen first. Name the problem in words (muddy, harsh, thin, boomy) before touching a band.
  2. Find the range on the chart. The word tells you which zone to search.
  3. Sweep to locate it. Boost a narrow band, sweep through the zone until the problem jumps out, then turn the boost into a cut. Keep sweeps short and quiet to protect your ears.
  4. Cut before you boost. Removing problems first usually leaves less to add, and cuts tend to sound more natural.
  5. Check in context. Solo is useful for finding a frequency, but judge the result with the full mix playing.
  6. Level-match before and after. A louder version almost always sounds better, so bypass and compare at equal level.

Worked example: a muddy mix

A mix that sounds thick and unclear usually has too much energy in the low mids from several parts at once. Instead of one big cut on the master, try a 2–3 dB cut somewhere between 250 and 400 Hz on the guitars, the pads and the piano, leaving the vocal and bass alone. Then check the vocal: if it still sounds boxy, sweep it for a narrow resonance. Small cuts on many tracks usually clean up a mix more naturally than one large cut on the bus.

Why ranges are only a starting point

Every recording is different. Microphone choice, room, playing style and tuning all move the important frequencies around. A kick tuned low and a kick tuned high put their punch in different places, and a deep male voice and a high female voice have different mud and presence zones. A cheat sheet tells you where to look; your ears tell you what to do. For a deeper explanation of each range, read our EQ frequency guide, and for the masking problems that make EQ necessary, see frequency masking in mixing.

Which EQ shape to use in each range

  • High-pass filter for the sub and bass zones on parts that do not need them.
  • Low shelf to add or reduce overall warmth without targeting one frequency.
  • Bell (peak) band for mud, boxiness, honk and harsh spots in the mids; use a narrow width for resonances and a wide one for tone shaping.
  • High shelf for air and overall brightness.

Common mistakes

  • Applying chart settings blindly. A number on a chart is not a setting for your track.
  • Boosting everything that sounds good soloed. Several tracks boosted in the same zone fight each other.
  • High-passing too aggressively. Cutting too high thins out vocals and guitars. Raise the filter until you hear the tone change, then back it off.
  • Ignoring the sub range. Energy you cannot hear on small monitors still uses headroom and affects loudness.
  • Making narrow, deep cuts everywhere. Reserve narrow cuts for clear resonances.

FAQ

What frequency is mud in a mix?

Mud usually builds up between about 200 and 500 Hz.

Where is vocal presence?

Around 2 to 5 kHz. Sibilance usually sits higher, around 5 to 8 kHz.

What frequency is the punch of a kick drum?

Most kicks have their body and punch around 60 to 100 Hz, with the beater click around 2 to 5 kHz.

What is the air frequency range?

Roughly 10 to 20 kHz. A gentle high shelf there adds openness to vocals, cymbals and full mixes.

Should I cut or boost EQ?

Cut first to remove problems, then boost gently for character.

Build your EQ skills further with our complete EQ guide, and see the overview of audio equalization. Keep the interactive EQ frequency chart open in a tab next to your DAW while you mix.

Categories
Audio Production

How to Name Your Song: A Step-by-Step Title Guide

Here is how to name your song: pull a short, memorable phrase from the lyric or the main image of the track, test it out loud, then search the streaming services to make sure it is easy to find and not already a famous song in your genre. If you are stuck, the free Solar Heavy name generator builds song titles, artist names and playlist names from a genre, a mood and your own keywords.

Why a song title matters

A title is the first thing a listener reads in a playlist, a release radar or a search result. It is also how people find the track again after hearing it once. A good title does three jobs: it matches the feeling of the music, it is easy to say and spell, and it points listeners to your track rather than to ten others with the same name.

The title also shapes how the song is remembered. When the hook line and the title match, a listener who only remembers the chorus can still type it into a search bar and land on your song.

Step 1: Start with the lyric

The most reliable source of a title is the song itself. Read through the lyric and mark:

  • The hook line. The phrase that repeats in the chorus is usually what listeners will search for.
  • The strongest image. A concrete object or place (a street, a colour, a car, a room) is often more memorable than an abstract word like “love” or “pain”.
  • An unusual phrase. A short combination of words that does not appear in many other songs is easier to find.

Write down every candidate, even weak ones. A list of ten to twenty options is a better starting point than one idea you feel you must defend.

Step 2: Match the title to the genre and mood

Titles carry genre signals. A one-word, all-caps title reads differently from a long, sentence-style title, and listeners pick up on that before they press play. Look at the titles in a few playlists your song could sit in and note the patterns: length, whether they use full sentences, whether they use names or places, and how often they use numbers or symbols.

You do not need to copy those patterns, but a title that fits the shelf it sits on helps a curator or listener understand what they are about to hear.

Step 3: Generate options when you are stuck

For instrumentals and beats there is no lyric to borrow from, and that is where a generator helps. In the name generator:

  1. Choose song title as the type of name.
  2. Pick the genre and the mood that fit the track.
  3. Add one or two keywords, such as an image from the lyric, a place, or the feeling of the drop. About half of each batch is built around your keywords.
  4. Press Generate more for fresh batches and star the names you like. Favourites stay in your browser on that device.
  5. Copy your shortlist into your notes and run each one through the checks below.

The tool runs in your browser and nothing you type is sent to a server. Treat its output as raw material: changing one word of a generated title often gives you something that feels like your own.

Step 4: Say it out loud

Read each shortlisted title aloud, as if a radio host or a friend were introducing the track. Cut any title that:

  • is hard to pronounce or has more than one obvious pronunciation;
  • is easy to misspell when someone hears it (people will search for the spelling they guess);
  • sounds like a different, more famous song;
  • needs an explanation to make sense.

Step 5: Check that people can find it

Search your shortlist on the main streaming services and a search engine. You are looking for two things:

  1. Is it a famous song already? Song titles are generally not protected by copyright, so many songs share a name. The practical problem is search: if a big hit in your genre already owns the title, your track will sit under it.
  2. Is it searchable? Very common single words and titles built from symbols are hard to find. Adding a second word, or using the specific phrase from your hook, makes the title more distinct.

If you plan to use a name commercially beyond a song title, such as an artist name, a label name or merch, check your country’s trademark register as well. The name generator filters out well-known artist and brand names, but it cannot check every one.

Step 6: Lock it into your metadata

Once you choose the title, use it the same way everywhere: the DAW project, the bounced file name, the distributor upload, the cover art and your social posts. Consistent spelling and capitalisation stop the same song from appearing as two different titles in stores. Our guide to adding the artist and song name to a file covers the tagging side.

Title checklist

Check Pass if…
Fits the song It matches the lyric, image or mood a listener hears first.
Easy to say One obvious pronunciation.
Easy to spell Someone who heard it could type it correctly.
Findable No famous song in your genre already dominates the search results.
Fits the genre shelf It looks at home in the playlists you are pitching to.
Consistent Spelled the same in the file, the upload and the artwork.

Naming artists and playlists

The same process works for artist names and playlist names, with one difference: they need to last. A song title only has to work for one song, but an artist name has to work for every release and for your social handles. For a deeper look at choosing a performing name, read how to choose a musician name. The name generator has separate modes for artist or band names and for playlist names.

Common mistakes

  • Naming the project file “final_v3” and never deciding. Pick a working title early and replace it later; a placeholder that sticks is worse than a deliberate choice.
  • Choosing a title that only makes sense to you. Inside jokes rarely help a stranger remember the track.
  • Ignoring search. A title that is identical to a big hit makes your song hard to find.
  • Changing the spelling between platforms. Inconsistent metadata splits your plays and confuses listeners.
  • Using a generated name without checking it. Always search a name before you print it or release it.

FAQ

Should the song title be in the chorus?

It does not have to be, but it helps. When the title matches the hook, listeners who remember the chorus can search for the song and find it.

Can two songs have the same title?

Yes. Titles are generally not protected by copyright, so many songs share one. The bigger risk is being buried in search under a better-known song.

How long should a song title be?

There is no rule. Short titles are easy to remember, while longer phrases are easier to find. Choose what fits your genre and the song.

How do I name an instrumental or a beat?

Use the mood, an image the track suggests, or a place. A name generator with genre and mood settings is useful here because there is no lyric to borrow from.

Is the Solar Heavy name generator free?

Yes. It is free, needs no sign-up and runs in your browser.

For more on the craft behind the lyric, see our songwriting guide and the US Copyright Office’s notes on what copyright protects. When you need a title now, open the free name generator and build a shortlist in a minute.

Categories
Audio Production

Music Release Checklist: Master to Release Day

A music release checklist covers everything from the final master to the weeks after release day: masters, cover art, metadata and credits, ISRC and UPC codes, distribution, pitching, pre-saves, promotion and follow-up. Working through it in order stops last-minute mistakes that delay a release or put wrong information in stores. The free release checklist builder gives you an editable, printable version that saves your progress in your browser.

How to use this checklist

  1. Open the release checklist builder and give the list your release name.
  2. Work from top to bottom, ticking items as you finish them; the progress bar updates as you go.
  3. Add your own tasks to any section and remove ones you do not need.
  4. Press Print checklist for a clean, printer-friendly copy to keep by your desk.

Your ticks and custom items are saved in that browser on that device. Nothing is uploaded, and clearing the browser’s site data removes the list, so print a copy for anything you cannot afford to lose.

Stage 1: The master

  • Final mix approved, with no clicks, pops or cut-off tails.
  • Mastered file delivered in the format your distributor asks for, usually WAV at 16- or 24-bit.
  • Loudness checked with a reference and a meter; our LUFS meter measures integrated loudness in your browser.
  • Mono compatibility checked so the track holds up on phones and speakers.
  • Start and end silence trimmed consistently across every track.
  • Explicit or clean version decided, and a clean edit made if needed.

Our guide on preparing your track for release goes deeper on this stage.

Stage 2: Cover art

  • Square image, at least 3000 × 3000 pixels in RGB, which most stores ask for.
  • No web addresses, prices, store logos or social handles on the artwork.
  • Artist name and title, if shown, match the metadata exactly.
  • You own or have licensed every image, font and photo used.
  • Readable as a small thumbnail.

Stage 3: Metadata and credits

  • Track titles spelled and capitalised exactly as you want them to appear.
  • Primary artist, featured artists and remixers entered correctly.
  • Songwriter, composer and producer credits collected and confirmed by everyone involved.
  • Genre, language and explicit flags set.
  • Lyrics prepared, if your distributor or platforms support them.
  • Splits agreed in writing before release, not after.

Stage 4: Codes

  • ISRC for every track. An ISRC identifies a specific recording; reuse the same code for the same recording on every release it appears on. See the International Standard Recording Code overview.
  • UPC (or EAN) for the release as a whole.
  • Many distributors can issue both; note them in your records either way.

Stage 5: Distribution and release date

  • Distributor chosen and account set up.
  • Release date picked with enough lead time. Aim to upload 3 to 4 weeks before release day, so stores can process it and you have time to pitch and run a pre-save.
  • Upload completed and every field reviewed before submitting.
  • Store and territory selections checked.
  • Release format correct: single, EP or album. Our explainer on how many songs are on an EP covers the common rules.

Stage 6: Pitching and pre-release

  • Track pitched to editorial playlists through the platforms’ artist tools where available.
  • Pre-save or pre-order link created and shared.
  • Short bio and release description written.
  • Press and blog contacts listed and pitched.
  • Social content planned: teasers, behind-the-scenes clips, lyric snippets.
  • Artist profiles updated with new photos and links.

Stage 7: Release day

  • Check that the release is live and correct on each major store.
  • Share the links on every channel and with everyone who worked on it.
  • Thank collaborators and early supporters publicly.
  • Fix any metadata errors with your distributor straight away.

Stage 8: After release

  • Register the songs with your performing rights organisation and any other collection societies you belong to.
  • Track early streams and saves in your artist dashboards.
  • Keep posting content about the song for several weeks, not just on day one.
  • Save every final file, code and credit in one archive for the future.
  • Review what worked and add new tasks to your checklist for next time.

A sample release timeline

Checklists work best when each stage has a deadline. Count backwards from your release day:

When Focus
8+ weeks before Finish the mix and master; brief the cover artist; agree credits and splits.
6 weeks before Approve the artwork; collect metadata; get or confirm ISRC and UPC codes.
4–3 weeks before Upload to your distributor; review every field; set up the pre-save.
3–1 weeks before Pitch to playlists and press; post teasers; update profiles.
Release day Check every store; share links; thank collaborators.
1–6 weeks after Register with collection societies; keep posting; review results.

If you release often, the early stages can overlap: finish the next master while the current song is in its promotion window. Print each release’s checklist once it is complete and file it with the masters, artwork and codes, so you have a record of exactly what went out and when. Before starting the next release, untick the builder’s items or remove and re-add custom tasks so the list reflects the new project.

Worked example: a single on a tight schedule

An artist finishes a single five weeks before their chosen date. The master is approved in week one, and the artwork, metadata and codes are completed in week two. The upload goes in at four weeks out, leaving room for the distributor to process it and for a playlist pitch. Pre-save links go out with the first teaser three weeks before release. On the day, the artist checks the release on each store, spots a featured artist’s name misspelled on one platform and asks the distributor to correct it immediately. Working down a list makes that kind of check routine rather than something remembered by chance.

Plan the budget alongside the checklist

Most checklist items have a cost: mixing, mastering, artwork, distribution, codes and promotion. Put your own quotes into the release cost calculator to see the total, the cost per track and a rough break-even stream count, then check potential earnings with the royalty calculator.

Common mistakes

  • Uploading a week before release. You lose the time needed for processing and pitching.
  • Mismatched names. An artist name spelled differently on the art and in metadata can cause rejections or split profiles.
  • New ISRCs for an existing recording. Reuse the original code when the same recording appears again.
  • Unagreed splits. Settle credits and percentages before the song is out.
  • Stopping promotion after day one. Most songs need weeks of attention.
  • Logos or URLs on the cover. Stores commonly reject artwork with them.

FAQ

What do I need before releasing a song?

A finished master, cover art, correct metadata and credits, ISRC codes for each track and a UPC for the release, a distributor, and a release date with enough lead time.

How far ahead should I upload my release?

Aim for 3 to 4 weeks before release day.

What size should cover art be?

Most stores ask for a square image of at least 3000 × 3000 pixels in RGB.

Is my checklist saved?

Yes, in your browser’s local storage on that device. Nothing is uploaded.

For more on getting paid and getting heard, see our music business guide. Start your next release with the free release checklist builder and tick it off one task at a time.

Categories
Audio Production

How to Build Chords From a Scale (With MIDI Files)

Here is how to build chords from a scale: start on any note of the scale and stack every other note on top of it (root, third and fifth), using only notes from that scale. Doing this from each of the seven notes gives you the seven diatonic chords of the key, the chords that naturally fit together. The free chord and scale reference shows the notes, intervals, piano keys, guitar shapes and MIDI numbers for any chord or scale, and lets you download it as a MIDI file.

Step 1: Write out the scale

Pick your key and list the seven notes, numbering them 1 to 7. In C major:

Degree 1 2 3 4 5 6 7
Note C D E F G A B

Not sure what key your song is in? Our guide on how to find the key of a song walks through it.

Step 2: Stack thirds on each note

Take a scale note, skip one, take the next, skip one, take the next. From C you get C, E and G. From D you get D, F and A. Continue up the scale, wrapping round to the start when you run out of notes. Each result is a triad: a root, a third and a fifth.

Step 3: Name each chord by its intervals

The quality of each triad depends on the distance in semitones between its notes:

  • Major: 4 semitones from root to third, 7 from root to fifth.
  • Minor: 3 semitones to the third, 7 to the fifth.
  • Diminished: 3 semitones to the third, 6 to the fifth.

The chord and scale reference shows the intervals and semitone counts for every chord, so you can check your spelling as you go.

The diatonic chords of a major key

Every major key follows the same pattern of qualities: major, minor, minor, major, major, minor, diminished. Roman numerals show it, with upper case for major and lower case for minor:

Degree I ii iii IV V vi vii°
C major C Dm Em F G Am Bdim
G major G Am Bm C D Em F#dim
F major F Gm Am Bb C Dm Edim

The diatonic chords of a natural minor key

A natural minor key uses the same notes as its relative major, starting from the sixth degree, so the pattern shifts: minor, diminished, major, minor, minor, major, major.

Degree i ii° III iv v VI VII
A minor Am Bdim C Dm Em F G

Many songs in minor keys raise the seventh note to make the v chord major (E instead of Em in A minor), which gives a stronger pull back home. That raised note comes from the harmonic minor scale, one of the scales you can view in the reference.

Step 4: Add sevenths for richer chords

Stack one more third on top and each triad becomes a seventh chord. In C major: Cmaj7, Dm7, Em7, Fmaj7, G7, Am7 and Bm7♭5. Seventh chords sound smoother and jazzier, and they are common in R&B, neo-soul, lo-fi and house. The reference covers 7th, maj7, m7, 6th, 9th, sus2, sus4, diminished and augmented chords, so you can compare their colours.

Step 5: Get the chords into your DAW

  1. Open the chord and scale reference and choose Chords.
  2. Pick the root note and the chord type.
  3. Check the correctly spelled notes, the MIDI note numbers and the keys on the piano diagram, or the guitar chord shapes if you play guitar.
  4. Press Download MIDI for a standard MIDI file containing a one-bar chord block.
  5. Drag it into any DAW and copy it to the bars you need.

Switch to Scales to download the scale going up to the octave, a handy guide track for writing melodies. The MIDI files use the standard where middle C (C4) is note 60; some DAWs label that note C3, but the pitch is the same.

Chords from modes

The same stacking method works on any seven-note scale, including the modes. Each mode is a major scale started from a different degree, so it has its own pattern of chord qualities and its own character:

  • Dorian (D to D using C major’s notes) has a minor home chord but a major IV chord, giving minor songs a brighter, soulful lift. In D Dorian the chords include Dm and G.
  • Mixolydian (G to G) has a major home chord with a flat seventh, so the chord a whole step below home is major. In G Mixolydian that is F, a sound common in rock and funk.
  • Lydian (F to F) has a major II chord, which gives a floating, dreamy feel often heard in film music.

Choose Scales in the reference to view every mode with its notes and intervals, then stack thirds exactly as you did for the major scale.

Voicing and inversions

The notes of a chord do not have to be played in root position. Moving the lowest note up an octave gives an inversion: C, E, G becomes E, G, C. Inversions let you move between chords with smaller hand or note movements, which sounds smoother and keeps parts in a comfortable range. When you drag a downloaded chord into your DAW, try shifting individual notes up or down an octave to find the voicing that fits your arrangement.

Worked example: a progression from the scale

In C major, the chords I, V, vi and IV give C, G, Am and F, one of the most used progressions in pop. Because all four come from the same scale, they share notes and move smoothly. Swap the vi for a ii (Dm) for a softer feel, or replace G with G7 for a stronger pull back to C. To audition more combinations quickly, try the chord progression generator, and read how to make chords for voicing tips.

Why spelling matters

Each scale uses every letter name once. That is why F# major contains E# rather than F: the seventh note must be some kind of E. Correct spelling makes chord names consistent and stops theory from getting confusing in sharp and flat keys. The reference spells every chord and scale this way.

Common mistakes

  • Using notes from outside the scale by accident. Count from the scale, not from the chromatic keyboard.
  • Forgetting the diminished chord. vii° in major and ii° in minor sound tense; use them as passing chords.
  • Mixing up relative keys. C major and A minor share chords; the home chord decides the key.
  • Ignoring octave labels. If a MIDI file seems an octave off, check whether your DAW calls middle C “C3”.
  • Stopping at triads. Sevenths and suspended chords add colour from the same scale.

FAQ

What notes are in a C major chord?

C, E and G: the root, the major third and the perfect fifth.

What is the difference between a major and minor chord?

A minor chord has a minor third, 3 semitones above the root, instead of a major third, 4 semitones. The root and fifth are the same.

How many chords are in a key?

Seven diatonic chords, one built on each scale degree, plus borrowed chords songs often add.

What are the notes of the A minor pentatonic scale?

A, C, D, E and G.

Go deeper with our music theory guide and the overview of diatonic harmony. Pick a key and build your first set of chords in the free chord and scale reference.

Categories
Audio Hardware

Convert Hz to MIDI Note: Formula, Chart and Cents

To convert Hz to MIDI note numbers, use MIDI = 69 + 12 × log2(frequency ÷ 440): the whole number is the nearest note and the decimal part × 100 tells you how many cents sharp or flat the frequency is. To go the other way, frequency = 440 × 2^((MIDI − 69) ÷ 12). The free pitch to Hz and MIDI converter does both instantly, including cents offsets and custom A4 tuning.

How MIDI note numbers work

MIDI describes pitch as a number from 0 to 127, one number per semitone. Middle C is 60 and A4, the 440 Hz tuning reference, is 69. Moving up one semitone adds 1; moving up an octave adds 12. Because the scale is logarithmic in frequency but linear in note numbers, MIDI numbers are the easiest way to do pitch maths: transposing by a fifth is always +7, whatever the starting note.

Note MIDI number Frequency (A4 = 440 Hz)
C1 24 32.70 Hz
A1 33 55.00 Hz
C2 36 65.41 Hz
C4 (middle C) 60 261.63 Hz
A4 69 440.00 Hz
C5 72 523.25 Hz

For a full list of every piano key, see our note to frequency chart, or open the chart view in the converter.

The formula, step by step

Here is a worked example converting 100 Hz:

  1. Divide by 440: 100 ÷ 440 = 0.2273.
  2. Take log base 2: log2(0.2273) ≈ −2.138.
  3. Multiply by 12: −2.138 × 12 ≈ −25.65.
  4. Add 69: 69 − 25.65 = 43.35.
  5. Round to the nearest whole number: 43, which is G2 (98.00 Hz).
  6. The leftover 0.35 × 100 = 35 cents, so 100 Hz is G2, 35 cents sharp.

If the leftover is above 0.5, round up instead and the cents become negative (flat). The converter handles this for you and shows the nearest note and the offset directly.

What are cents?

A cent is one hundredth of a semitone, so there are 1,200 cents in an octave. Cents let you describe tuning more finely than note names. Small differences of a few cents are hard to hear on one note but become audible as beating when two notes play together. In the converter you can add a cents offset to any note to see the exact frequency of a detuned pitch.

Why producers convert between Hz and notes

  • Tuning kicks and 808s. Find the fundamental of a kick or 808 with a spectrum analyser, convert it to a note, and tune the sample to the song’s key. A kick with its fundamental at 55 Hz is sitting on A1.
  • Setting EQ on musical frequencies. If a resonance rings at a frequency that matches the key, it may be a note you want to keep; if it is between notes, it is more likely a room or instrument problem. Our EQ frequency chart shows which ranges matter for each instrument.
  • Tuning delay and filter settings. Pitched filter cutoffs and resonant effects can be set to a note so they reinforce the harmony.
  • Programming synths. Some synths and modular gear show oscillator pitch in Hz; converting to notes keeps patches in key.

Changing the A4 reference

All of these numbers assume A4 = 440 Hz. If you work at 442 Hz, 432 Hz or another reference, replace 440 in both formulas with your value. In the converter, change the A4 reference and every result updates. MIDI numbers do not change with tuning; only the frequencies attached to them do. Read more in our explainer on A440 tuning.

Why does my DAW call middle C “C3”?

There are two naming conventions for octaves. The converter uses C4 = MIDI 60, the scientific pitch notation used by most music theory books. Ableton Live, FL Studio and some other DAWs label the same note C3. The MIDI number (60) and the frequency (261.63 Hz) are identical; only the octave label differs. If your notes seem an octave off when moving between tools, this is almost always why.

Worked example: tuning an 808 to the song

Suppose your track is in F minor and your 808 sample shows its fundamental at about 50 Hz on a spectrum analyser. Run 50 Hz through the formula: 69 + 12 × log2(50 ÷ 440) ≈ 31.35. The nearest note is MIDI 31, which is G1, and the sample is about 35 cents sharp of it. F1 is MIDI 29, so the sample needs to come down two semitones and 35 cents. In a sampler, set the coarse tune to −2 and the fine tune to −35 cents, and the 808 will now play F1 when you press the F key.

The same check works for kicks, toms and tonal percussion. A drum that sits between two notes can sound slightly off against the bass even when nothing is obviously wrong, and converting its pitch to a note makes the fix exact instead of guesswork.

Common mistakes

  • Mixing octave conventions. Check whether a tool calls middle C “C3” or “C4” before you copy note names.
  • Measuring a harmonic instead of the fundamental. Spectrum analysers often show louder harmonics. The fundamental is the lowest strong peak.
  • Forgetting the tuning reference. A frequency that is “in tune” at A440 is a few cents off at A442.
  • Rounding too early. Keep the decimals until the end so the cents value is accurate.

FAQ

What MIDI number is A440?

A4 at 440 Hz is MIDI note 69.

What frequency is MIDI note 60?

Middle C, MIDI 60, is about 261.63 Hz with A4 tuned to 440 Hz.

What is the range of MIDI notes?

MIDI note numbers run from 0 to 127, which covers more than ten octaves.

How do I convert a MIDI note to Hz?

Use frequency = 440 × 2^((MIDI − 69) ÷ 12). For example, MIDI 57 is 440 × 2^(−1) = 220 Hz.

Explore more MIDI topics in our MIDI and hardware guide, and see the MIDI Association specifications for the protocol itself. For instant answers, use the free pitch to Hz and MIDI converter.