Quick start

• Pick a style preset, then press PLAY.
• Click/tap steps in the grid to build your own pattern.
• Change sounds per row with the sound button on each channel.
• Use Beat Subdivision to increase or reduce note density inside the selected time signature.

Step controls

• Desktop: click = note on/off.
• Desktop: right-click active step = accent cycle (note -> accent 1 -> accent 2 -> note).
• Desktop: mouse wheel on active step adjusts note delay in 5ms steps (up = +delay, down = -delay), hold Shift while scrolling to adjust note volume in 5% steps.
• Mobile: tap toggles step on/off.
• Mobile: long-press active step opens note editor for accent, delay, and per-note volume.

Working with sheets

• Use + and - near the sheet buttons to add/remove sheets.
• Mobile/tablet landscape: swipe left/right across the step grid to move between sheets.
• Desktop: click-drag left/right across the step grid to move between sheets.
• COPY/PASTE works on the active sheet only.
• Sheet copy/paste includes notes, accents, per-note delay/volume, per-lane volume/accent, time signature, and beat subdivision.
• Playback runs through populated sheets in sequence, or enable Sheet Only to loop just the active sheet.

SHORTCUTS

• Sheet jump: top-row 1-9 and numpad 1-9 jump to sheets 1-9 (layout independent, works on AZERTY too).
• Quick keys: S = Single sheet, C = Clear, D = Draw mode, R = Reset.
• Copy/Paste sheet: Ctrl/Cmd + C = copy active sheet, Ctrl/Cmd + V = paste into active sheet.
• Undo/Redo: Ctrl/Cmd + Z = undo, Ctrl/Cmd + Y or Cmd + Shift + Z = redo (history limit: 20).
• Session: Ctrl/Cmd + S = save Session JSON, Ctrl/Cmd + O = load Session JSON.

Channels and kits

• Use Add channel to insert optional lanes (Shaker, Guiro, Brush, Custom lanes).
• Drag from the left edge of any channel lane to reorder channels (desktop and mobile).
• Desktop: optional lanes include Fill / Reset / Remove controls.
• Mobile: swipe left on an optional channel label to remove it.
• Drum kit presets switch matched channel sounds without changing your pattern.

Export and sessions

• Download exports only non-empty sheets in order.
• Save/Load Session JSON restores sheet-specific data (time signature, per-lane volume/accent, notes, accents, per-note delay/volume), plus sounds, favorites, and realism settings.

Tip

• Start simple (kick + snare + hats), then add accents and ghost notes for groove.