Beethoven Festival 2011: Musical performances are the focus of this five-day festival, but contemporary artists play a role, too, in programming that celebrates Ludwig as a muse. $20-$180; through Sunday at Chicago Urban Arts Society, 2229 S. Halsted St., 773-951-8101; chicagourbanartsociety.org
Art on Track: Now in its fourth iteration, the one-night mobile art show returns with a diverse group of local and regional visual artists who have created site-specific works for installation on CTA trains. $10; 5-10 p.m. Saturday at the Adams and Wabash CTA platform, 200 S. Wabash St.; artontrack.com
Gallery Weekend Chicago: This premiere event centered in the West Loop, offers locals the chance to capitalize on a half-dozen lectures, discussions and tours. Free; Friday through Sunday at various locations; galleryweekendchicago.com
Jon Langford & The Burlington Welsh Male Chorus: Renaissance man Langford, a prolific visual artist, too, will put all of his talents on the table this month in an acoustic performance at the gallery. Free; 7:30 p.m. Sept. 23 at Thomas Masters Gallery, 245 W. North Ave., 312-440-2322; thomasmastersgallery.com
— L.V.
