Compose Mode · Piano Roll
Create Your First Composition
Draw notes, build chord progressions, and layer multiple tracks — all in a piano roll designed for touch.
Create a new composition
Tap Compose in the bottom nav, then tap the + button to create a new composition. Give it a name, choose a time signature (4/4 by default), and set the initial tempo.
Your composition opens in the piano roll editor with one empty track. All compositions are saved automatically and sync to iCloud if you have cross-device sync enabled.
Open in app
ComposeUnderstand the piano roll
The piano roll is a grid where:
• Horizontal axis (left → right) = time. Each column is one beat; bar lines divide the grid into measures.
• Vertical axis (top → bottom) = pitch. Higher keys are at the top, lower keys at the bottom. The keyboard strip on the left edge maps to the same layout.
Notes appear as horizontal blocks. A longer block = a longer note duration. Tap the keyboard strip at any time to hear a pitch and find its position in the grid.
Draw and edit notes
Tap the Edit button (pencil icon) to enter edit mode. In edit mode:
• Tap an empty cell to place a note at that pitch and beat
• Drag the right edge of a note to change its duration
• Drag the body of a note to move it in time or pitch
• Tap a note to select it; tap again to delete it
Pinch to zoom in for precise editing or zoom out to see the full arrangement. Double-tap the grid to fit all notes in view.
Add tracks and instruments
Tap the + Track button in the track list on the left. Each track has its own instrument — choose from piano, electric piano, bass, strings, and more from the instrument picker.
Tracks are colour-coded. Mute or solo individual tracks with the M/S buttons on the track row. Adjust track volume with the fader in the track settings panel.
All tracks play back simultaneously, so you can layer a melody over a chord progression or add a bass line beneath your main part.
Import a chord progression
Tap the progression templates button (grid icon) to browse 14 built-in chord progressions across Pop, Jazz, Blues, and Classical styles. Tap any template to preview it, then tap Add to drop it into the current track at the playhead position.
Alternatively, switch to the Compose chord view and use the chord picker to build a progression manually — choose each chord root and quality, then drag slots to reorder.
Open in app
Compose → ProgressionsPlay back and export
Tap the play button in the toolbar to hear your composition from the beginning, or tap anywhere on the timeline to start from that point. The metronome button in the toolbar toggles a click track.
When you're ready to export, tap the share button (top right) to export as a MIDI file or an audio recording. MIDI export preserves all track data; audio export renders a stereo mix you can share directly.
Practice in the app
Learn this on Tiny Instrument
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More guides
Compose Mode · Chord Progressions
Build Chord Progressions in Compose
Start from a template or record chords directly from your instrument — then send the progression straight to Practice.
Play Mode · Live Rewind
Capture Ideas with Live Rewind
Play freely — Live Rewind records a rolling 2-minute buffer in the background so nothing you improvise is ever lost.