Top Controls
Row 0 (the top row) contains all playback and musical controls. These buttons let you control tempo, scale, musical key, and more.
Control Layout Overview
Top Controls (Row 0)
Top Controls (Row 0)
Exact 1:1 representation - hover over any pixel to see what it does
Play/Stop (3px)
Cols 0-2: Tap to start/stop, hold 2s for WLED config
Undo
Col 4: Undo last action
Redo
Col 5: Redo action
Major Scale
Col 7: Select major scale
Minor Scale
Col 8: Select minor scale
Pentatonic
Col 9: Select pentatonic scale
Root Notes
Cols 11-22: Select key (C through B)
Ghost Notes
Col 24: Toggle ghost note display
BPM -
Col 26: Decrease tempo
BPM Display
Col 27: Shows current BPM, pulses with beat
BPM +
Col 28: Increase tempo
Length -
Col 30: Decrease pattern length
Length Display
Col 31: Shows pattern length (8-32 steps)
Length +
Col 32: Increase pattern length
Shake Indicator
Cols 34-35: Shows shake gesture detection
USB MIDI
Cols 36-37: USB MIDI connection indicator
Bluetooth MIDI
Cols 38-39: Bluetooth MIDI connection indicator
Clear Pattern
Cols 40-43: Clear all notes
Play/Stop
Play/Stop
Play/Stop
Column 0: Start or stop the sequencer
Play/Stop Button
Green = playing, dim = stopped. Tap to toggle.
Playhead Position
Current step indicator moves across the grid during playback.
| State | Color | Description |
|---|---|---|
| Playing | 🟢 Bright Green | Sequencer is running |
| Stopped | ⚫ Dim | Sequencer is paused |
BPM (Tempo)
BPM Controls
BPM Controls
Columns 1-2: Adjust tempo
BPM Down
Column 1. Tap to decrease tempo by 5 BPM.
BPM Up
Column 2. Tap to increase tempo by 5 BPM.
- Default: 120 BPM
- Range: 40-240 BPM
- Step: ±5 BPM per tap
- Hold: Continuous adjustment
Pattern Length
Pattern Length
Pattern Length
Columns 3-4: Adjust pattern length
Length Down
Column 3. Decrease pattern length (32→16→8).
Length Up
Column 4. Increase pattern length (8→16→32).
8-Step Pattern
Visible columns 4-11 when length is 8.
| Length | Steps | Use Case |
|---|---|---|
| 8 | 8 steps | Quick loops, fills |
| 16 | 16 steps | Standard patterns |
| 32 | 32 steps | Extended phrases |
Scale Selection
Scale Selection
Scale Selection
Columns 5-7: Choose musical scale
Major Scale
Column 5. Bright, happy sound. Intervals: 0-2-4-5-7-9-11
Minor Scale
Column 6. Dark, emotional sound. Intervals: 0-2-3-5-7-8-10
Pentatonic Scale
Column 7. Simple, universal. Intervals: 0-2-4-7-9
When you change scales, existing notes snap to the new scale — out-of-scale notes move to the nearest in-scale pitch.
| Scale | Notes | Character |
|---|---|---|
| Major | C D E F G A B | Happy, bright |
| Minor | C D Eb F G Ab Bb | Sad, emotional |
| Pentatonic | C D E G A | Simple, versatile |
Musical Key (Root Note)
Key Selection
Key Selection
Columns 8-19: Select musical key (root note)
Key Selection
Columns 8-19. Each column represents a chromatic note (C through B).
Current Key Indicator
The active key glows brighter than others.
| Column | Note | Color |
|---|---|---|
| 8 | C | Red |
| 9 | C# | Orange |
| 10 | D | Dark Orange |
| 11 | D# | Yellow-Orange |
| 12 | E | Yellow |
| 13 | F | Yellow-Green |
| 14 | F# | Green |
| 15 | G | Cyan-Green |
| 16 | G# | Cyan |
| 17 | A | Sky Blue |
| 18 | A# | Blue |
| 19 | B | Purple |
Changing the key transposes all notes in the pattern to the new key.
Clear, Undo, Redo
Edit Controls
Edit Controls
Columns 20-22: Clear, Undo, Redo
Clear All
Column 20. Clears all notes from the current pattern.
Undo
Column 21. Reverts the last change.
Redo
Column 22. Re-applies an undone change.
- Clear: Removes all notes (can be undone)
- Undo: Supports multiple levels
- Redo: Restore undone changes
Ghost Notes Toggle
Ghost Notes
Ghost Notes
Column 23: Toggle ghost note display
Ghost Notes Toggle
Column 23. Shows faded notes from other sections for reference.
Ghost Note Example
Faded notes from other sections appear as dim pixels.
Ghost notes show faded versions of notes from other song sections, helping you create cohesive arrangements.
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