Gary, Ind.'s new music man and the Eiffel Society's first big fish, Freddie Gibbs bolted Interscope ahead of his heralded debut. Rough sketches from those recording sessions now make up two free mixtapes, whose borrowed titles — The Miseducation of Freddie Gibbs and midwestgangstaboxframecadillacmuzik — belie Gibbs' free-flowing raps and creative backing tracks. Gotham Green and DJ Quickie Mart also perform. Tickets $15. 10 p.m. Friday, Eiffel Society, 2040 St. Charles Ave., 525-2951. www.eiffelsociety.com.