Conversation so far:
how did they come up with the composition?
he would come up with the riffs, but I would be the finish guy for that.
I sat down and came up with the chorus, the bridges, and so forth.
Who composed the music?
"'Man on the Moon' was something that Bill [Berry] had, this one chord change that he came in with.

Question: did it take a long time to compose?
Self-contained rewrite: Did it take the composers a long time to compose the Man on the Moon ?