Filter - Low/High/Band pass filter with cutoff and resonance
LFO - Low Frequency Oscillator for modulation
Effects - Reverb and Delay processing
Osc Mixer - Mix up to 3 oscillators
Pitch - Pitch bend, portamento, and vibrato
Scope - Real-time waveform display
Arpeggiator - Automatic note sequencing
Keyboard Shortcuts
Playing:
A-L, W,E,T,Y,U - Play notes
Z/X - Octave down/up
←/→ - Pitch bend
Space - Sustain pedal
Sound:
1-4 - Select waveform
` - Toggle arpeggiator
Other:
Escape - All notes off (Panic)
F11 - Full screen
Ctrl+S/O - Save/Load presets
Presets
Use the Start menu → Programs to browse built-in presets. Click Save Current... in the File menu to save your own sounds. Presets are stored in your browser.
MIDI Support
Connect a MIDI keyboard or controller. Use Options → MIDI Setup to detect devices. Supports note on/off, velocity, sustain pedal (CC64), and modulation wheel (CC1).
Open Preset
×
Confirm
×
!
MIDI Setup
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Input Devices
Scanning for MIDI devices...
Status
MIDI support available
Connect a MIDI keyboard or controller and click Refresh to detect it.
Audio Settings
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Audio Device
Default Audio Output
Audio Info
Sample Rate:--
Latency:--
State:--
Active Voices:0/8
Audio settings are controlled by your browser. Refresh the page to apply changes.
Keyboard Shortcuts
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Playing
A-J, W-U: Play notes (white/black keys)
Z/X: Octave down/up
←/→: Pitch bend
Escape: All notes off
Space: Sustain pedal
Waveform
1-4: Sine, Square, Saw, Triangle
Other
F11: Toggle full screen
Ctrl+Shift+S: Save As...
Ctrl+N: New (reset to defaults)
`: Toggle arpeggiator
Alt+F4: Exit
Export: Save to file (menu)
Import: Load from file (menu)
Features Guide
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MIDI Support
Connect a MIDI keyboard or controller to play. Supports note on/off, velocity, sustain pedal (CC64), and modulation wheel (CC1).
✓ Status bar shows connected device names
✓ Velocity display shows note velocity
Touch Pressure
On touch devices, pressing harder produces louder notes. The keyboard visual shows which keys are pressed.
Sustain Pedal
Hold notes even after releasing keys. Use Spacebar or a MIDI sustain pedal (CC64).
✓ SUST indicator lights up when active
Arpeggiator
Press notes and the arpeggiator plays them in sequence. Use the Toggle button or ` key to enable.
✓ Tap Tempo: Click to set BPM by tapping
✓ Hold: Keep playing last notes even after releasing