Mr. Jefferson’s “Stepista” is a free MIDI pattern generator plugin that uses music theory algorithms and AI to instantly create basslines, melodies, and chord progressions across 24 electronic music genre presets — no account needed.
▶ Get Stepista for Free (Official Site)
What Is Stepista?
Stepista is a free AI-powered MIDI pattern generator plugin by Mr. Jefferson. Combining Euclidean rhythm algorithms with music theory constraints, it generates musical MIDI patterns in real time. Choose from 24 electronic music genre presets — including Electro Bassline, House Groove, Techno Sequence, Trap 808, Lo-Fi Melody, Ambient Pad, DnB Arp, Acid Line, IDM Glitch, Synthwave Lead, Garage 2-Step, Detroit Techno, Jazz Waltz, and more. Generated MIDI can be dragged directly into your DAW or exported as a .mid file.
Key Features
24 electronic music genre presets for instant inspiration. 9 music modes (Major, Minor, Dorian, Phrygian, Lydian, and more) for scale locking. 13 real-time adjustment parameters including Key, Mode, Density, Velocity, Accent, Swing, Note Length, Octave, BPM, Loop Length, Improvise, Tension, and Style Selector. Interactive piano roll editor with note add, move, and resize support. Drag-and-drop MIDI export to any DAW, or download as .mid file. Available for Mac and Windows. No account registration required.
How to Download for Free
Visit the official Stepista site, select Mac or Windows, and download the installer directly. No account needed.