I (try to) routinely participate in Songfight, on online songwriting competition. They post song titles, you choose one, then write and record a song by the deadline. We usually have about a week to complete the songs.

It's all in good fun, with hale and hearty trash-talking and other jaunty banter on the discussion boards. I'm not terribly concerned with winning, I just enjoy the structure, process, and support.

My 'band' name is Hans Gruber: Ultimate Villain. Since I'm not really a band, I guess you could call it a 'pseudonym'.