Conversation so far:
what was the studio recording in reference to one-man bands?
The term one-man band is also colloquially used to describe a performer who plays every instrument on a recorded song one at a time, and then mixes them together
what do rock performers do in a one-man band performance?
some rock performers have made records in which they play every instrument (one after the other).

Question: do they overlay the sounds?
Self-contained rewrite: do rock performers overlay the sounds when they do one-man band recordings?