How to Transcribe Music by Ear

Published October 28, 2026 • 9 min read

Transcribing means working out what is played on a recording and writing it down. The usual way to get stuck is to grab every note in order from the first bar, which turns a song into hundreds of tiny guessing games. The method below builds a skeleton first (key, form, bass line) and hangs the details on it afterwards, so each step makes the next one easier.

Step 1: Choose the Right First Song

Choose your first few transcriptions for learning, not ambition. Good candidates have:

• A clear, prominent bass line.
• Moderate tempo, roughly 70–120 BPM.
• Three or four chords in a repeating pattern, as in many folk, soul and early rock songs.
• A sparse arrangement: one guitar or piano, bass, drums and voice.
• A melody you can already sing. You cannot transcribe what you cannot remember.

Leave dense jazz harmony, walls of distorted guitar and lo-fi live recordings until you have finished five or six simpler songs. Distortion smears harmonic content and makes chord quality hard to judge.

Step 2: Find the Tonal Centre (Key)

Before writing a single note, find the "home" note — the pitch the song feels like it wants to resolve to. Two reliable ways:

1. Hum the last note of the song. Most songs end on the tonic. Hold that note, then find it on your instrument by sliding up or down until the pitch matches and the "beating" between your note and the recording disappears.
2. Drone test. Play a single low note against the chorus and change it until one note sounds settled under every bar. That is usually the tonic. If it sounds settled but slightly sad, you are probably in a minor key; bright and open, probably major.

Once you know the tonic, you know the seven notes most likely to appear. In C major, that is C D E F G A B; in A minor, the same notes with A as home. This reduces every pitch decision from twelve options to roughly seven.

One catch: if your instrument always sounds slightly sour against the track, the recording is probably detuned (tape speed drift or a band tuned down). If it is a whole semitone off, as with guitars tuned to E♭, shift the recording by one semitone. See playing along with detuned recordings for the in-between cases.

Step 3: Map the Form Before the Notes

Listen through once with a pen and count bars. Write a road map such as: Intro 4 – Verse 16 – Chorus 8 – Verse 16 – Chorus 8 – Bridge 8 – Chorus ×2 (16) – Outro 4 (fade).

Count "1-2-3-4, 2-2-3-4, 3-2-3-4..." with the drums, so the first number tells you which bar you are in. Sections are usually 4, 8, 12 or 16 bars; if you count 7 or 9, recount, then check for a deliberately added or dropped bar, which is common at the end of a bridge.

The map saves time: if Verse 2 matches Verse 1, you transcribe it once. A pop song of over 100 bars often contains only 30–40 bars of unique material.

Step 4: Bass Line First

The bass usually plays the root of each chord on the downbeat, so transcribing it gives you the harmonic skeleton almost for free. Work like this:

1. Loop the first 2 bars of the verse.
2. Sing the bass note on beat 1. Find it on your instrument.
3. Do the same for beat 1 of the next bar, then fill in the notes between.
4. Write it down before moving on.

Bass is hard to hear on small speakers, so use headphones and narrow the frequency range if you can. In Music Slow Downer, the Bass preset is a 30–400 Hz band-pass filter. It does not remove the kick drum or low piano, but it pulls the mix's centre of gravity down so the bass is easier to follow. Sing the line an octave up in your comfortable range rather than trying to growl it. For more, see how to learn bass lines by ear.

Step 5: Melody Next

With the bass in place, take the main melody (usually the vocal), hearing each note against the bass: "the singer is on the 3rd of the chord", "this note clashes, so it's a passing tone".

• Find the first and highest note of each phrase, then fill in.
• Think in steps and leaps. Most melodies move by step; leaps usually land on chord tones.
• Separate pitch from rhythm. Get the pitches, then work out where each lands against the beat.

The Vocals preset (300 Hz–4 kHz) lifts the voice out of the bass and cymbals, though guitars and keys in that range still come through.

Step 6: Harmony and Chord Quality

You already know the root of each chord from the bass. Now decide its quality. These ear cues work for most popular music:

The fastest test is to play both options against the recording: strum C major over the track, then C minor, and the wrong one clashes within a second. Use the key too. In C major the expected chords are C, Dm, Em, F, G, Am and Bdim; anything else, such as B♭ or E major, is a deliberate colour worth flagging. Leave exact voicings and inversions until last.

Step 7: Work in Short Loops

Loop length matters. For pitch work, 1–2 bars (about 2–5 seconds) is the sweet spot: less than a beat loses the musical context, and more than 4 bars overloads short-term memory. For each loop:

1. Listen 3–4 times without playing.
2. Sing it back, out loud, matching the recording.
3. Find it on your instrument.
4. Play along with the loop 3 times in a row without errors.
5. Write it down, then move the loop to the next bar, overlapping by one beat.

The overlap captures transitions between bars, where most errors hide. See our guide to A/B looping for setting loop points accurately.

Step 8: Use Slow-Down Sensibly

Slowing a recording down while keeping the pitch the same is the single most useful aid for transcription — but more is not always better.

• 0.75× (75%) is a good default for checking melodies and chord changes. The music still sounds natural and you keep the feel.
• 0.5–0.6× is right for busy parts: ornamented vocal lines, sixteenth-note riffs, fills. If the song is 160 BPM, 0.6× gives you about 96 BPM — slow enough to hear each note, fast enough to still hear phrases.
• 0.25–0.4× is for very fast runs only: shred solos, bebop lines, drum fills. At 120 BPM, 0.3× is 36 BPM — each sixteenth note lasts about 0.4 seconds.

Expect artifacts. Time-stretching chops audio into tiny chunks and spreads them out, so very slow playback sounds smeared and slightly metallic, drum and pick attacks blur, and bends or vibrato can wobble in ways the original doesn't. Treat extreme slow-down as a microscope for identifying notes, then confirm at 0.75× or above. Music Slow Downer's speed slider runs from 0.25× to 1.5× in 0.01 steps with pitch preserved, so these adjustments can be precise.

Step 9: Write It Down

Choose a format that matches what you'll use it for:

• Chord charts — chord names above lyrics or in bar boxes (| C | Am | F | G |). Fast, and enough for most bands.
• Nashville Number System — chords as scale degrees (1 – 6m – 4 – 5), so one chart works in any key.
• Tablature — fret and string for guitar and bass. Add rhythm markings, because plain tab doesn't show timing.
• Standard notation — the most complete record of pitch and rhythm; best for piano, horns and handing to other musicians.

Whatever the format, include the form map, key, tempo (count beats for 15 seconds and multiply by 4) and anything unusual, such as a 2/4 bar or a key change.

Step 10: Check Against the Recording at Full Speed

The final check is always at 1.0×. Play your transcription along with the original from start to finish, listening for notes that rub (wrong pitch or chord quality), places where you're early or late (often a missed tie or anticipation), and spots where you got lost (form errors).

Then record yourself playing along and listen back; errors that are invisible while playing are obvious on playback.

Common Mistakes

• Starting with the hardest part. The solo is tempting, but the bass line and chords give you the context that makes the solo easier.
• Loops that are too long. If you keep "almost" getting a passage, halve the loop.
• Living at 0.3×. Extreme slow-down distorts timing feel and timbre. Use it briefly, then speed back up.
• Guessing instead of testing. Unsure between two notes? Play each against the recording.
• Not writing anything down. Transcriptions kept only in your head fade quickly.

Troubleshooting

I can't tell which octave a note is in

Very common with bass and with doubled parts. Play the note in both octaves against the track; the right one will "disappear" into the recording. Also check the instrument's range — a bass guitar in standard tuning can't play below its open low E (about 41 Hz).

Two chords sound almost the same

Check the bass note. C major and A minor share two notes; the bass usually tells you which one you're hearing. If the bass is on E under a C chord, write C/E.