Complex sentence: By that time, he had also chosen to pursue a career in music, singing with the Army and Air Force bands, he also became a born again Christian when he sat and listened to a sermon at a Baptist church in Panama.
Split into simpler sentences: By that time, he had also chosen to pursue a career in music, singing with the Army and Air Force bands. He became a born again Christian when he listened to a sermon at a Baptist church in Panama.