MIDI Mutator

MIDI Mutator is a generative MIDI engine for electronic producers who want a fast, musical starting point. Choose one of 138 substyles across 24 genres, press MUTATE, and it writes ten interlocking parts — lead, arp, pluck, bass, pad, stab, chord, atmosphere, a 303 line and a counter-melody — all in the same key, on the same harmony and in the groove of the genre. Each substyle has its own generator per part, so a Raw/Hypnotic arp never sounds like a Liquid Drum & Bass arp. Parts develop with answers, octave throws, turnarounds and pickups while keeping their opening rhythm. Lock what you love, regenerate the rest, edit notes and drag one card, a selection or the whole set into your DAW. Everything is royalty-free for commercial use. Windows only.