Jazz is built around the ride cymbal: the kit keeps a swinging ride heartbeat at 140 BPM while a single chord voice comps around it and two melody voices trade phrases like horn players.
Jazz is included with the Pro and Studio plans; the free plan covers five genres. See pricing.
How the engine writes jazz
The harmony draws on richer changes than the pop genres, the comping leaves space instead of filling it, and the trading voices mean no two eight-bar stretches phrase alike. Every part lands on its own MIDI track for your own piano, bass and horns.
From a roll to your DAW
A roll defaults to 140 BPM (every preset and tempo is editable before and after generating) and plays back in the browser through the studio's own synths. When you like a take, export it as whole-track or per-instrument MIDI, or as WAV/MP3 audio — the drum part uses General MIDI numbering, so it lands correctly on any drum plugin. There are step-by-step import guides for Ableton Live, FL Studio and Logic Pro.