Perfect Pitch Test — Absolute Pitch Quiz Online

This perfect pitch test plays isolated, randomized chromatic notes from C4 to B5 and asks you to name each one with no reference tone. Every note is synthesized in your browser with the Web Audio API, and the quiz runs locally, so nothing is uploaded.

How to use it

1. Choose the quiz length. 10 rounds is the default and takes about two minutes; 20 rounds tightens the score, because each extra trial narrows the range of results that luck alone can produce.
2. Pick the starting sound. Pure tone uses a single sine oscillator at the note’s fundamental. Piano stacks the fundamental with an octave, a twelfth, a fourth partial at 4.02 times the fundamental for slight inharmonicity, and a second fundamental detuned by 4 cents. The quiz alternates between the two timbres round to round, so both appear whichever option you start with.
3. Press Start test. The first note plays automatically. Play again repeats the same note as many times as you like, and replaying does not add an external reference.
4. Click the key you heard. The keyboard spans two octaves, C4 to B5: 14 white keys and 10 black keys, 24 answers in total. Each white key is labeled with its note name, and black keys show their names on wider screens, so this is a naming test rather than a keyboard drill.
5. Read the feedback and continue. A correct answer is acknowledged with the note name; a miss shows the key you chose against the true note. Next note advances the quiz.
6. Finish or end early. After the last round, or whenever you press End test, the results panel shows your score, your personal best for this browser, a verdict band, and buttons to retake, share, or change settings.

Absolute pitch and relative pitch

Absolute pitch means naming a pitch class in isolation; relative pitch means judging notes from a reference you already heard. The quiz accepts octave-specific answers, so a random click on the 24-key deck lands 1 in 24, or about 4.2% per round. Over 10 rounds, guessing averages 0.4 correct; the chance of reaching 6 out of 10 by luck is roughly 9.5 x 10^-7, and 9 out of 10 is roughly 3.6 x 10^-12. Those odds are why the score bands are worth reading, and why a full 20-round quiz is stronger evidence than a short one.

Quiz length	Expected correct by guessing	Absolute Pitch band (90% or higher)	Strong Relative Pitch band (70% to 89%)
10 rounds	0.4	9 or 10 correct	7 or 8 correct
20 rounds	0.8	18 to 20 correct	14 to 17 correct

The verdict thresholds are a convention the quiz applies to its own results, not a diagnosis. A 20-round score of 18 is numerically stronger evidence than 9 out of 10 because more trials shrink the role of chance, and a short quiz taken in a noisy room proves very little either way.

What the two timbres test

A pure sine gives you the fundamental alone, which is the cleanest possible stimulus and the hardest to label from timbre memory. The piano voice carries partials at 2x and 3x the fundamental, plus the 4.02x inharmonic partial and the 4-cent detune, so it supplies more spectral information about the note. If your accuracy drops on the pure-tone rounds (they fall on alternating rounds), you were leaning on instrumental color rather than pitch class. That is useful information about which cue your ear is using.

Prevalence and adult training, stated honestly

Published prevalence figures for absolute pitch vary enormously. A 2025 systematic review of phenotyping methods reports estimates from under 1% to 65% across study populations, with the pass criterion and the recruitment method doing much of the work (DOI 10.3758/s13428-024-02577-z). Any single “1 in N people” number describes a particular sample and a particular test, not you. What is better established is the other direction: relative pitch responds to deliberate practice, while reliable acquisition of true absolute pitch in adults is not established, and short training studies that report gains remain contested. Nothing on this page promises that practice will give you absolute pitch.

A practice routine that helps

Ten focused minutes a day beats an occasional long session, and the routine below is arranged so that relative pitch and pitch memory improve even if absolute labeling never arrives.

• Use the quiz as a benchmark, not the whole workout. Take 10 rounds on Pure tone, then 10 on Piano, on separate days. Compare the two score sets before changing anything.
• Drill intervals with a reference. Sing or hum an interval, then check it against the Tone Generator or Pitch Pipe. Five minutes of this is enough per day; accuracy grows from the feedback loop, not the volume of notes.
• Hold one anchor. Repeatedly hearing and producing a single reference note strengthens pitch memory and general musicianship. Treat it as memory training, not as a route to absolute pitch.
• Stop when answers become random. Random clicking at the end of a session teaches your ear nothing; end on a rung where you are still concentrating.

Accuracy, limits and troubleshooting

• Relative anchoring can inflate a short quiz. Comparing each new note with the previous one is a legitimate listening strategy, but it is not absolute pitch. The 24-note pool is drawn without repeats until exhausted, so a long quiz keeps presenting fresh notes rather than recycling a few.
• Laptop speakers color the low end. C4 to B5 fundamentals are reproducible on most built-in speakers, but cabinet resonance adds misleading timbre cues. Headphones remove the room from the equation and are the better default.
• Disable OS audio effects. Equalizers, spatial audio, 3D modes and voice isolation alter timbre, which changes the cue the test is measuring.
• Background noise masks the upper partials, which matters most on the piano timbre. A quiet room raises the ceiling of what the test can resolve.
• Your best score is stored per browser. It holds the highest result by ratio, so a 10-round 9 out of 10 is not displaced by a 20-round 14 out of 20.
• This is an educational quiz, not a clinical assessment. It cannot diagnose hearing loss, amusia, or anything else. If you are concerned about your hearing, see an audiologist.

Related tools

• Blind Pitch ABX Test — cents-level discrimination with randomized blind scoring.
• Ear Training EQ Drill — band naming with pink noise and a synth pad source.
• Pitch Pipe — generate a steady reference tone for interval and intonation practice.