Conversation so far:
When did first become a musician?
Following his tour of duty in the United States Army, Bacharach spent the next three years as a pianist and conductor for popular singer Vic Damone.
Did he ever work by himself?
CANNOTANSWER.
Did he work with anyone else?
Bacharach's productivity increased when composer Peter Matz recommended him to Marlene Dietrich.

Question: Was there anyone else he worked with?
Self-contained rewrite: Other than Marlene Dietrich, was there anyone else Burt Bacharach worked with?