Conversation so far:
When did Chet Atkins start his musical career?
After dropping out of high school in 1942, Chet Atkins landed a job at WNOX-AM radio in Knoxville, where he played fiddle and guitar.
What prompted Chet Atkins to start his musical career?
Though not clearly stated, it's possible that dropping out of high school prompted Chet Atkins to pursue a musical career.

Question: Was he playing with a band?
Self-contained rewrite: Was Chet Atkins playing with a band?