One cable, one sound. Patch a VCO into the Output and hear the most satisfying drone in modular: proof the signal chain is alive.
Time to patch. The rack has a VCO and an Output, and no cables.
Drag from the VCO SIN output to the Output L input. A cable appears. You hear a tone.
That is modular synthesis. One cable, one sound. Everything else in this course is variations on this moment.