In Oli Gunglivash, Tracy played bass, guitars, metals, and occasionally "sang". He's played bass with Groute Gate Gender on a few different occasions, and was present for one very amazing little jam-session. He's also responsible for Levi Bailey knowing ANYTHING about Converge, Coalesce, Gyga, Sunny Day Real Estate, and Today Is The Day. He's a hell of a guy. Tracy Northern was also in a band called Uncarved Block. You can get their CD right here.