Controls

Control Action
D-pad Move cursor
A (hold) + D-pad Edit value (←→ ±1, ↑↓ ±16 / ±octave)
A (tap) Insert last value in empty cell
B Clear cell
R shoulder Dive in (song → chain → phrase → instrument)
L shoulder Back out
Select + ←→ Switch screen
Start Play / stop
Select + A Copy cell (or set range anchor)
Select + B Cut cell / cut range
R2 Paste
L2 Undo (64 levels)
Select + L2 Redo
Select + R2 Duplicate chain / phrase / instrument
Select + Start PANIC — hard-stop all sound
R (sample browser) Preview highlighted wav
R (waveform editor) Preview marked start..end region
Save project

Editing values: Hold A, then press a direction. Left/right adjust ±1; up/down adjust ±16 (or ±12 semitones in note columns). Release A to commit. A tap on an empty cell inserts the last-used value for that column.