Every module is a small machine with knobs, jacks, and labels. Learn to read a panel at a glance so the rest of the course feels obvious.
Every module looks the same from across the room: a tall rectangular panel with knobs, jacks, and labels.
Knobs turn. They change parameters like pitch, volume, filter cutoff. Jacks are small round holes. Cables plug into them. Labels tell you what each knob and each jack does.
That is all a module is. A small box with knobs and jacks, doing one job. The module on the right is a VCO. Read the labels. Next step we plug stuff in.