Conversation so far:
How did Bacharach get started in music?
Following his tour of duty in the United States Army, Bacharach spent the next three years as a pianist and conductor.
Who did he work with?
popular singer Vic Damone.
Did he write any songs for Damone?
CANNOTANSWER.
Who else did he collaborate with?
He later worked in similar capacity for various other singers, including Polly Bergen, Steve Lawrence, the Ames Brothers and Paula Stewart.
What do you mean by "similar capacity"?
as a pianist and conductor.

Question: When did he begin writing music?
Self-contained rewrite: When did Burt Bacharach begin writing music?