Available Now
Synth Preview
01 / MIDI Synth

Keyboard Synthesiser

A fully playable polyphonic synthesiser. Click keys, use your computer keyboard, or plug in any USB MIDI device. Oscilloscope, ADSR, filter, reverb — all live.

USB MIDI Polyphonic Web Audio ADSR
Open Synth →
Excel Sequencer Preview
02 / Excel Synth

Excel Step Sequencer

A 4-channel, 32-step polyphonic sequencer — originally built inside Microsoft Excel using VBA. Click any cell to edit notes and waveforms. Export to WAV.

Step Sequencer 4 Channels Export WAV Editable
Open Sequencer →
Coming Soon

Drum Pad

Browser-based velocity-sensitive drum pads using the same dual-switch logic as the MIDI keyboard.

Arpeggiator

Automatic arpeggio generator — hold a chord, select a pattern, and let it run.

Circuit Visualiser

Interactive breadboard diagram showing the MIDI keyboard circuit — hover components to learn what they do.

More Experiments

Unexpected builds and creative engineering projects documented as they happen.