Rock n’ Roll Cowboys 1988 on netflix

Working as a roadie for a high decibel rock band, young Mickey Lagrange, fantasizes about someday playing his own songs up on stage. He also longs for the sexy lead singer and is jealous of the spotlight clamoring Guitarist. Desperate and frustrated Mickey is at his wits end as to a solution, until a neighbour supplies him with a synthesizer that creates music through pure thought.