To sing a song is quite different than to write a poem. I'm not and never will be a novelist, but to write a novel is not the same thing as writing a play. There is a difference in form, but essentially what you're after is the same thing.
Sam ShepardIn many of my plays, there was a kind of autobiographical character in the form of a son or young man. The purpose of it, of course, was to write about myself. That character was always the least fully realized. Eighteen years later, you realize, That's what he was about.
Sam Shepard