Pick a concert key, then tick the instruments in your group. The engine writes each player's part in their own correct key & clef — so a whole mixed ensemble can read their pages and play in tune together. Press ▶ to hear them combined.
Paste a few chords (or a whole chord sheet), then shift to any key with one tap, find an easier capo position, or flip to Nashville number notation. No sign-in, no reading music — built for guitar, piano, ukulele, gospel and worship charts.
A capo keeps the same sound but gives easier shapes to finger; transpose actually changes the key (to match a singer's voice); Nashville numbers stay the same in every key — the pro way to think in any key at once.
Type a few chords, pick a style, and the rest of the band — drums, bass and chords — plays underneath so you can play or sing along, in your key. Mute any part (play the bass yourself, or drop the drums), slow it down and add a count-in from the practice bar.
e.g. C | Am F | G7 — bar 2 holds two chords (half a bar each). No bar lines = one chord per bar.
Can't read or write music? Just hum or sing a tune and Transpose Music Studio writes it on a staff — notes you can see, hear back and export. Hold each note clearly; one note at a time works best.
Describe the music you want — key, mood, instrument, difficulty — and Claude writes real notation you can see, hear and keep editing. No need to read music.
Powered by music21 (transposition & instrument reconciliation) + Verovio (engraving) + a General-MIDI soundfont (playback) + Claude (composition, via ABC notation). The written parts you see are transposed for each player's eye; the audio is rendered at concert pitch so the group sounds in tune. Sing or hum a tune and it lands on the staff too; next slice adds PDF export on this same engine.
What is 6 + 7?