I mean, first, almost all writers these days teach because they don't make enough money publishing to live on, to support themselves - people like Tobias Wolff, Anne Beattie, Amy Hempel, Stuart Dybek; a lot of short story writers, for one thing.
If you put all the songs together that I've written on band records, and put it up next to my solo record, there's definitely a different kind of feel than Billy's songs.