Phrase Arpeggiation

Turn simple MIDI chords into complete musical phrases in realtime.

Rows decide how incoming notes are selected, repeated, transposed, and routed. Play different chords and the phrase follows instantly.

DAW Style Editing

Edit phrases like MIDI clips, not step patterns.

Draw notes freely, set phrase lengths from a beat to a full arrangement, and use probabilities to keep patterns evolving.

Automate MIDI CC with the same piano-roll flow.

Shape filters, pitch bends, sustain, and expression across multiple channels, or run Phrasebox in CC-only mode on existing MIDI.

Create complex rhythms that stay easy to edit.

Use per-row loop points, repeaters, polyrhythms, and Euclidean timing to create synced or freely spaced variations.

More ways to shape, generate, and control your MIDI phrases.

Generate a phrase from your current rules, then edit the result by hand.

Keep transposed notes inside the key with lock-to-scale behaviour, so variations stay musical.

Use one input to drive layered synths, split orchestral parts, or route phrases across instruments.

Use unlimited rows with rules for pitch, timing, velocity, random selection, fixed notes, MIDI channel, and transposition.