Is this a real perfect pitch test?

It practices the skill perfect pitch describes: naming a note heard on its own, with no reference note played before it. Choose Notes, press Play and pick one of the twelve note names; any octave of the note counts, because the answer is the name. The score is a practice result for this session on this device, not a measure of innate perfect pitch and not a hearing test, and what you hear also depends on your speakers or headphones. Hear A4 under Settings plays the reference note only when you press it; hearing it before a question turns note naming into a comparison with A.

How does the seed work?

Every session is dealt from a seed, a whole number from 0 to 999999999, together with the exercise, the range, the notes asked or the direction, and the number of questions. The same seed with the same settings plays the same prompts in the same order in any browser, so you can repeat a session to see whether your score changes. Press Replay this seed when a session ends, Replay on any session in the history, or type a seed under Settings and press Start with this seed. The reference and the waveform change only the sound, never the prompts.

Why does a revealed answer not count?

Reveal shows the answer when you would rather hear it than guess. A revealed question is marked revealed: it is never counted as right, and it is left out of the unassisted score, which is your right answers out of right plus wrong. The revealed count sits beside it, so a session with 5 right, 1 wrong and 1 revealed shows Unassisted 5 of 6, 83.3% and Revealed 1, not counted. Once a question is revealed it cannot be answered.

How are the notes tuned?

In twelve-tone equal temperament from A4, the A above middle C, at 440 Hz unless you change it: each semitone multiplies the frequency by 2^(1/12). Middle C, C4, is 261.63 Hz and G4 is 392.00 Hz, so a perfect fifth is a ratio of 2^(7/12), about 1.498. The reference can be set anywhere from 400 to 480 Hz, such as 442 or 415, and every tone moves with it; at 442 Hz, C4 is 262.81 Hz. The browser generates each tone as a sine, triangle, square or sawtooth wave, so no recording is downloaded.

Which intervals and chords are included?

Intervals: all twelve from a minor second (m2, 1 semitone) to a perfect octave (P8, 12 semitones), with the tritone (TT, 6) between the perfect fourth and the perfect fifth. Chords: the four basic triads in root position, major (4 + 3 semitones), minor (3 + 4), diminished (3 + 3) and augmented (4 + 4). Both can be played rising, falling or with the notes together, and every prompt fits inside the range you pick, which needs at least 12 semitones for intervals, 8 for chords and 11 for notes.

Can I practice only the white-key notes?

Yes. With Notes chosen, set Notes asked to Naturals only, and the page plays and offers only C, D, E, F, G, A and B. All twelve is the default. Sessions can be 10, 20 or 40 questions long.

Where is my score saved?

In this browser only. Your settings, the session in progress and up to 30 finished sessions are kept in its local storage, and nothing you answer is sent anywhere. A session with at least one answer or reveal goes into the history when it finishes, when you end it, or when you start another session or change a setting that starts one. Clear history removes the list, and Start over forgets everything this tool stored.

Why is there no sound?

The tones need the browser's Web Audio engine, which starts on your first press of Play. If nothing plays, check that the tab and the device are not muted; the page says so when the browser refuses or holds back sound. Sound also stops when you switch to another tab, and Repeat plays the prompt again when you come back.

Ear Training Studio

Hear a note, an interval or a chord and name it. Ear Training Studio plays single notes for absolute pitch practice, the twelve intervals from a minor second to an octave, and major, minor, diminished and augmented triads, rising, falling or together, all synthesized in your browser at equal-tempered pitch from A4 = 440 Hz or a reference you set from 400 to 480 Hz. What it does differently is keep the score honest and repeatable: every session is dealt from a seed, so the same seed with the same settings plays the same prompts in the same order, and Reveal shows an answer without ever counting it as right. After each answer the page explains it in note names, hertz and semitones, and finished sessions go into a history in this browser that you can replay.

preparingNotes

range: C4 to C5
reference: A4 = 440 Hz, standard tuning
waveform: Triangle
notes: all twelve
seed: none yet

Preparing a session

answer

Play the prompt, then pick an answer. Reveal shows the answer without counting it as right.

Question: none yet
Unassisted: none answered yet
Revealed: 0, not counted
Tuning: A4 = 440 Hz

Note prompt A4standard tuning
played at 440.00 Hz
C4 then G4Intervals
a perfect fifth, 7 semitones
Seed 2291 replayed, answer revealed on question 3Intervals, same settings
the same 20 prompts in the same order; question 3 revealed, not counted: 2 right, 1 revealed, unassisted 2 of 2, 100%

Settings

A change to the range, the notes, the direction or the number of questions starts a new session with the same seed; a session with any answer or reveal goes into the history first. The reference and the waveform change the sound at once.

Lowest note

Highest note

Reference A4, Hz

400 to 480

Waveform

Notes asked

Questions

This session, by answer

Nothing answered in this session yet. Each answer you give is counted here by its right answer.

History

Kept in this browser only, newest first, up to 30 sessions. Replay deals the same prompts again from the seed.

No finished sessions yet.

How the scoring works. Each question takes one answer, and an answer counts once its prompt has sounded. Reveal shows the answer and marks the question revealed: it is never counted as right, and it is left out of the unassisted score, which is right answers out of right plus wrong. The seed and the settings that decide the questions (exercise, range, note set, direction and number of questions) deal the prompts, so the same seed with the same settings plays the same prompts in the same order. The reference and the waveform change only the sound.

Common questions

Is this a real perfect pitch test?: It practices the skill perfect pitch describes: naming a note heard on its own, with no reference note played before it. Choose Notes, press Play and pick one of the twelve note names; any octave of the note counts, because the answer is the name. The score is a practice result for this session on this device, not a measure of innate perfect pitch and not a hearing test, and what you hear also depends on your speakers or headphones. Hear A4 under Settings plays the reference note only when you press it; hearing it before a question turns note naming into a comparison with A.
How does the seed work?: Every session is dealt from a seed, a whole number from 0 to 999999999, together with the exercise, the range, the notes asked or the direction, and the number of questions. The same seed with the same settings plays the same prompts in the same order in any browser, so you can repeat a session to see whether your score changes. Press Replay this seed when a session ends, Replay on any session in the history, or type a seed under Settings and press Start with this seed. The reference and the waveform change only the sound, never the prompts.
Why does a revealed answer not count?: Reveal shows the answer when you would rather hear it than guess. A revealed question is marked revealed: it is never counted as right, and it is left out of the unassisted score, which is your right answers out of right plus wrong. The revealed count sits beside it, so a session with 5 right, 1 wrong and 1 revealed shows Unassisted 5 of 6, 83.3% and Revealed 1, not counted. Once a question is revealed it cannot be answered.
How are the notes tuned?: In twelve-tone equal temperament from A4, the A above middle C, at 440 Hz unless you change it: each semitone multiplies the frequency by 2^(1/12). Middle C, C4, is 261.63 Hz and G4 is 392.00 Hz, so a perfect fifth is a ratio of 2^(7/12), about 1.498. The reference can be set anywhere from 400 to 480 Hz, such as 442 or 415, and every tone moves with it; at 442 Hz, C4 is 262.81 Hz. The browser generates each tone as a sine, triangle, square or sawtooth wave, so no recording is downloaded.
Which intervals and chords are included?: Intervals: all twelve from a minor second (m2, 1 semitone) to a perfect octave (P8, 12 semitones), with the tritone (TT, 6) between the perfect fourth and the perfect fifth. Chords: the four basic triads in root position, major (4 + 3 semitones), minor (3 + 4), diminished (3 + 3) and augmented (4 + 4). Both can be played rising, falling or with the notes together, and every prompt fits inside the range you pick, which needs at least 12 semitones for intervals, 8 for chords and 11 for notes.
Can I practice only the white-key notes?: Yes. With Notes chosen, set Notes asked to Naturals only, and the page plays and offers only C, D, E, F, G, A and B. All twelve is the default. Sessions can be 10, 20 or 40 questions long.
Where is my score saved?: In this browser only. Your settings, the session in progress and up to 30 finished sessions are kept in its local storage, and nothing you answer is sent anywhere. A session with at least one answer or reveal goes into the history when it finishes, when you end it, or when you start another session or change a setting that starts one. Clear history removes the list, and Start over forgets everything this tool stored.
Why is there no sound?: The tones need the browser's Web Audio engine, which starts on your first press of Play. If nothing plays, check that the tab and the device are not muted; the page says so when the browser refuses or holds back sound. Sound also stops when you switch to another tab, and Repeat plays the prompt again when you come back.

Tones are synthesized in your browser at equal-tempered pitches from A4 = 440 Hz unless you change the reference, so what you hear also depends on your speakers or headphones. Scores describe this session on this device: they are practice results, not a measure of innate perfect pitch and not a hearing test.