Four Tet shares his technique for humanizing MIDI patterns by introducing randomization in velocity and pitch. By varying the velocity of MIDI notes by 15%, he creates a more dynamic and less static synth sound, making each note feel more human and expressive.
Additionally, he adds a 15% chance for notes to jump an octave up or down, introducing unexpected "sparkles and twinkles" that keep the pattern fresh and engaging. This approach causes every playback of the track to be unique, offering subtle variations that make live performances and recordings distinct each time.