Conversation so far:
What happend in 2001 with Billy Corgan?
Following a brief stint touring with New Order in the summer, Billy Corgan reunited with Chamberlin to form the band Zwan with Corgan's old friend Matt Sweeney in late 2001.

Question: What music they made?
Self-contained rewrite: What music did Billy Corgan's band, Zwan make?