Seattle unlocks after you get the van from New York.

Jimmy Astros
Blitzkrieg Bop - Ramones
Black Hole Sun - Soundgarden
Make a Setlist (2)
Mystery Open Mike (2) - Paranoid / Gimme Shelter

Gas Works Tavern
Are You Gonna Be My Girl - Jet
Roadie Rock Off -
"OH NO! The evil and corrupt band DETHFACTORY has challenged you to a rock-off! If you beat them you'll gain serious street cred ... AND STEAL THEIR ROADIES!"
Really, a rock off is not any different than a regular set list. You play, and when you win you get a "roadie". A roadie just means you can now get into locations that require a roadie. When you win it says "Obviously you're really too talented to lug your own gear"
Showstoppers Set (4)

The Sealth Theater

Rock Band Walkthrough

Rock Band Review