Conversation so far:
what was the concept?
only about success, not even attempting to get acquainted with the actual persons of whom the band was comprised .
who was it comprised ?
Pink Floyd.
Are there any other interesting aspects about this article?
In the mid-1970s, as Pink Floyd gained mainstream fame, Waters began feeling increasingly alienated from their audiences.

Question: what happened after this/?
Self-contained rewrite: what happened after Waters beginning to feel alienated after mainstream fame?