Conversation so far:
What is Enchant by Emilie Autumn?
Enchant is the debut studio album by Emilie Autumn, originally released on February 26, 2003, by Traitor Records and re-released on August 17, 2007 by Trisol Music Group GmbH
Who did Emilie Autumn collaborate with in 2001–2004?
Emilie Autumn's bandmates consisted of cellist Joey Harvey, drummer Heath Jansen, guitarist Ben Lehl, and bassist Jimmy Vanaria.
What else did Emilie Autumn do during 2001–2004 besides the album, Enchant's release?
As part of a recording project, Autumn traveled to Chicago, Illinois, in 2001.

Question: What did she do in Chicago?
Self-contained rewrite: What did Emilie Autumn do in Chicago in 2001–2004?