Complex sentence: Her father, Ed Henderson was a self-taught musician who worked as a EKG technician, he quit that office job when Heather was 17 then he tried to make a living as a musician singing and playing the guitar and banjo.
Split into simpler sentences: Her father, Ed Henderson was a self-taught musician who worked as an EKG technician. He quit that office job when Heather was 17 and tried to make a living as a musician singing and playing the guitar and banjo.