Append durations with : in bars using decimal numbers (0.5, 1.5, etc.) or ticks (T192) for absolute control.
Add slash chords (F/A) or rests (R:0.5).
Change feels fast by requesting fresh progressions from an LLM or your own notes; just paste, tweak, then preview.
Workflow Tips
Get Ideas from AI – Use an AI assistant to brainstorm progressions. Try the custom ChatGPT Generator or Google Gemini with a prompt like “deep dub techno pad progression, 16 bars,” then paste the results into the tool.
Choose the voicing recipe – Toggle between chords only, chords + bass, or bass alone, and pick the inversion logic
(root, smooth, or wide) plus base octave.
Preview + loop – Use the on-page synth to audition the sequence, click any chord button for spot-checking, and fine
tune durations or velocity until it grooves with your rhythmic system.
Export deliverables – Click Download MIDI for DAW work, Export PDF for printable charts, or Copy Share URL when you
want to send someone else the exact settings.