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Audio to Jianpu - Turn Any Song into Numbered Notation

Upload a song, a vocal recording, a MIDI or a MusicXML file and get the melody as jianpu (简谱): key, time signature, bar lines, dashes, underlines and octave dots. Fix notes in the editor, add lyrics, then export PNG, PDF, MusicXML or MIDI. Runs in your browser.

Drop a song or recording here, or click to choose

MP3, WAV, M4A, FLAC, OGG · up to 8 minutes

Vocal or solo melody (singer's range, filters bass)

Works best on a clean vocal or a single instrument. For a full song, extract the vocals first, then upload the vocal track. A MIDI or MusicXML file gives the most accurate jianpu.

How to Convert Audio to Jianpu

From a song file to a printable numbered score in three steps

01
Upload a song or a score file
Drop an MP3, WAV or M4A recording, or a MIDI or MusicXML file. For a full song, a clean vocal track gives the best melody.
MIDI and MusicXML are the most accurate input: nothing has to be guessed.
02
Check key, tempo and bar lines
The tool picks the melody, detects the key (1=C, 1=G…) and the beat, and writes the notes with dashes, underlines and dots. Adjust the key, time signature, tempo or bar position if needed.
Use ×2 / ÷2 when the tempo is detected at double or half speed.
03
Edit, add lyrics and export
Click any note to change it, type the lyrics under the notes, switch to staff view, then download PNG, PDF, SVG, MusicXML or MIDI.
MusicXML opens in MuseScore, Sibelius and Finale for further editing.

Audio to Jianpu Features

Melody extraction, numbered notation and editing in one free tool

01
Melody extraction from songs
A polyphonic note model (Spotify's Basic Pitch) transcribes the audio, then a continuity-aware skyline picks one singable melody line instead of chords and accompaniment.
02
Correct jianpu notation
Key header (1=C, 1=♭E…), time signatures 2/4, 3/4, 4/4 and 6/8, bar lines, dashes for long notes, underlines for eighths and sixteenths, dotted notes, ties, rests (0) and octave dots.
03
Note editor and lyrics
Fix wrong notes with the mouse or keyboard (1–7, arrows, +/−), split or merge notes, undo, and add one lyric syllable per note.
04
MIDI and MusicXML input and export
Import MIDI or MusicXML for exact rhythm, view the same melody on a five-line staff, and export MusicXML or MIDI to keep working in notation software.
05
Private, in-browser processing
Transcription and notation run on your device. Your audio is not uploaded to a server.
06
Free, no sign-up
Convert as many songs as you like. Signed-in users can also pick tracks they generated on GenMusic.

Audio to Jianpu FAQ

Questions about turning songs into numbered musical notation

[email protected]

Jianpu (简谱), or numbered musical notation, writes the notes of the scale as the numbers 1 to 7 (do re mi fa sol la ti), with 0 for a rest. Dots above or below a number change the octave, dashes lengthen a note and underlines shorten it. It is widely used in China and Southeast Asia for songs, choirs and folk instruments.

It depends on the recording. A clean vocal or a solo instrument gives a usable draft in most cases; a full mix with drums, chords and backing vocals is harder, and the melody may jump to another voice. Rhythm is snapped to a beat grid, so rubato, triplets and swing are approximated. Expect to fix a few notes in the editor. MIDI and MusicXML files convert exactly.

Isolate the vocals first with a vocal or stem separation tool, then upload the vocal track here and tick "Vocal or solo melody". You can also pick songs you made on GenMusic from your library.

Yes. Switch to the MIDI / MusicXML tab and upload a .mid, .musicxml, .xml or .mxl file. Notes and rhythm are read directly, the key signature sets 1=, and for multi-track MIDI you can choose which track is the melody.

The key is estimated from all detected notes with a key-profile method. Minor keys are written la-based, as is usual in Chinese jianpu (A minor is 1=C with 6 as the tonic). You can override the key at any time.

PNG image, PDF (through your browser's print dialog), SVG vector, MusicXML for MuseScore, Sibelius or Finale, and a MIDI file of the melody.

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