Note Identifier

Identify any musical note by sound. Sing, hum or play into your microphone, or upload an audio file, and this note identifier names each note (C, D♯, B♭…) with its octave and solfège. It shows exactly where the note is written on the treble or bass staff and which piano key it is, and it lists every note in the order you played it, so you can work out a melody note by note.

Note Identifier

Sing, hum or play, or upload a recording, to identify each musical note: its name, where it sits on the staff and on the piano, and the notes in the order you played them.

Choose an input

Press Start and allow microphone access, or choose Audio file. Everything is analysed in your browser; nothing is uploaded.

C4
Middle C Solfège: Do 261.6 Hz · 0 cents Example

Notes in order

0 notes

    Each note you hold for a moment appears here, in the order you sing or play it.

    Settings: note names, mode, A4, sensitivity, microphone, reference tone

    Related Tools

    How to Identify a Note with Your Microphone

    1. Keep Microphone (live) selected and press Start identifying notes. Allow microphone access.
    2. Sing, hum or play one note at a time. The note name appears straight away, with its place on the staff and the piano.
    3. Hold each note for a moment. Every steady note is added to Notes in order.
    4. Press Stop when you’re finished, then Copy notes to keep the list.

    If you have more than one microphone, choose it under Settings. For a guitar, bass or piano, switch the detection mode to Instrument, which covers 40 Hz to 4,000 Hz.

    Identify Notes from an Audio File

    Choose Audio file and select a recording (MP3, WAV, M4A or OGG, up to 25 MB). The tool decodes the file in your browser, analyses the first two minutes, and lists every note with its start time and length, for example E4 · 0:01.7 · 0.9 s. Tap any note in the list to see it on the staff and keyboard. The file never leaves your device.

    This works best on recordings of a single voice or instrument, such as a voice memo of a tune stuck in your head or a solo instrument line. Songs with backing music, chords or several singers contain many notes at once, which a single-note identifier can’t separate.

    Reading the Result

    • Note name and octave: written in scientific pitch notation. Middle C is C4, and the number goes up at every C. A4 is the A above middle C, the standard 440 Hz tuning note.
    • Sharps or flats: the black keys have two names, so C♯ and D♭ are the same sound (enharmonic notes). Pick the naming that matches your music under Settings; the alternative name is always shown.
    • Solfège: the fixed-do name (Do, Re, Mi, Fa, Sol, La, Ti), useful if you learned music with syllables.
    • Staff: notes from middle C up are shown on the treble clef, and lower notes on the bass clef. Ledger lines are drawn for notes above or below the staff. Very high or low notes use an 8va or 8vb octave sign, just as in printed music.
    • Piano key: the matching key lights up on a keyboard from C2 to C7.
    • Hz and cents: the exact frequency, and how far the sound is from the named note. For detailed tuning, use the pitch detector.

    NoteSolfègeFrequencyOn the staff
    C4 (middle C)Do261.6 HzOne ledger line below the treble staff
    D4Re293.7 HzJust below the bottom line
    E4Mi329.6 HzBottom line
    F4Fa349.2 HzFirst space
    G4Sol392.0 HzSecond line
    A4La440.0 HzSecond space
    B4Ti493.9 HzMiddle line

    Find the Notes of a Melody

    To work out the notes of a tune by ear, sing or play it slowly, one clear note at a time, and read the list in Notes in order. The summary shows the lowest and highest notes and the notes you used most, which usually point to the key. Use the song key finder to confirm the key, or practise hearing them yourself with interval ear training.

    Note Identifier vs Pitch Detector

    Both use the same pitch detection, but they answer different questions. The note identifier answers which notes are these?: note names, the staff, the keyboard, and a sequence from your voice or a file. The pitch detector answers how in tune is this note?: frequency, cents, a tuner needle and a pitch trace for tuning and practice.

    Tips for Accurate Note Identification

    • Use a quiet room and play or sing one note at a time. Chords and background music confuse any single-note identifier.
    • Hold each note briefly. Very fast runs may merge or skip notes.
    • Plucked strings and piano notes fade quickly, so play them firmly and close to the microphone.
    • If quiet notes are missed, set Sensitivity to High. If room noise creates notes, set it to Low.
    • If a note shows up an octave out, check the detection mode (Voice or Instrument), or sing a little louder.

    Frequently Asked Questions

    Can it identify notes from a song on Spotify or YouTube?

    Only when a single voice or instrument is playing. Full mixes contain chords and several parts at once, and the tool follows one note at a time. A recording of yourself humming the tune works well.

    Can it read notes from sheet music?

    No. It identifies notes by sound, not from a photo of sheet music. It does show where each note it hears is written on the staff, which is a useful way to learn to read music.

    What does the number after the note mean?

    It’s the octave. C4 is middle C, C5 is the C above it and C3 the C below it, and every note up to the next C shares the same number.

    Is the note identifier free and private?

    Yes. It’s free and needs no sign-up. Microphone sound and audio files are analysed only in your browser and never uploaded.

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