[ThomasMidgley]

There are many musicians who "build" music in live concerts with modular synthesizers (in newer times mostly with Eurorack modules). Since many decades! Without computers. With some experience they know how to handle their tools. And with some experience a good live coder can do the same with his computer too.

[MivLives]

I've seen performances where the live coding is just them building those same modular synths just digital. They start with a patch, and know what patch they need to end in. Everything between is up to them. Wish I had a better look at what they were doing.