Here’s a study I did in patch surveillance. By mapping several dimensions of musical expression to a single knob, dramatic control of the entire music experience is possible with minimal manual control.
Cold Mac / → René Y CV [changes melody]
Cold Mac \ → Warps delay time modulation (attenuated by Quadratt) [changes the echos]
Cold Mac half wave up → Tides FM [changes the rhythm a little]
Cold Mac half wave down → reverb modulation [changes space]
Cold Mac full wave rectifier → plaits voice AM & DPO fold modulation [changes dynamics]
Cold Mac fold → Plaits morph & DPO shape [changes timbre]
Cold Mac survey → reverb modulation [changes space, but only around when the knob is turning]
Further patch notes in the YouTube description.