Hand tracking runs locally in your browser (MediaPipe). Show one hand clearly; switching gestures switches the chord instantly. No camera? Use keys 1–8.
Melody Hand · lead instrument
Raise or lower your other hand to pick the note — it snaps to the scale, one clean note per lane, gliding smoothly between them. The note sounds only while your index finger is up: lower it and the sound stops instantly, flick it to articulate notes (its fingertip glows gold while sounding). Want every microtone and your own hand vibrato instead? Switch Pitch mode to Continuous and a semitone ruler with a live tuner readout (A4 +12¢) appears. The melody hand is drawn in blue and never triggers chords.
Rhythm Pattern
Tempo · Sound
Gestures → Chords click a card or press its key to select manually
Presets:
Song Sheet · paste & auto-assign
Recordings
No takes yet — hit Record, play, then stop to save a take here.
Shortcuts
Space play / stop · R record · M metronome ·
1–8 select chord · A arpeggio ⇄ strum · ↑/↓ tempo ±2 · T tap tempo
Tips: the metronome is never recorded. Pattern & tempo changes apply at the next bar, and chord changes land on the ½-bar/bar (set "Chord change" in Options) so the groove never stumbles — the blue →chord in the top bar shows what's coming. Press A during a quiet verse to melt into fingerpicking, and again for the chorus strum — same tempo, seamless. Use the capo to match your singing key.