Complex sentence: This song is about Jason Scheff's father, Jerry Scheff, and describes Jason's memories growing up watching his father play for Elvis Pressley on TV (although he also played with Elvis Costello), and thinking that his father was the big star.
Split into simpler sentences: This song is about Jason Scheff's father, Jerry Scheff. It describes his memories growing up watching his father play for Elvis Pressley on TV (Although he Also Played with Elvis Costello), and thinking that his father was the big star.