Chords, Melodies, and even Rhythms & Bassline, all Scaler driven. C minor scale. Chord progression i, iii, v, iv - with various voicings per instrument. Using keybind, so the piano roll MIDI contains just trigger notes, not the actual melody.
Scaler outputs MIDI, which goes into Bitwig Velocity Curve (with a little randomization), then to U-he Zebra soft synth (various presets).