MUSIC: Michael Tilson Thomas conducts Austrian composer Gustav Mahler's Symphony of a Thousand. When Mahler's Eighth, a work of damnation and salvation, premiered in 1910 with 1,000 performers, it soon got stuck with the moniker "Symphony of a Thousand." Which Mahler loathed. But since he's dead now, feel free to use it liberally.

8 p.m. // Davies Symphony Hall (201 Van Ness) // $35 - $125

Q&A/PERFORMANCE ART: Underground comic artist and co-host of KPFA’s “Puzzling Evidence" Dr. Hal is back. Hosting a live Q&A game show complete with with video clips, eerie music, boozy questions, and a wise sage sporting a fez, Hal returns to answer your most intimate and pertinent questions. "Ask Dr. Hall" happens every Wednesday.

8 p.m. // Chez Poulet Gallery (3359 Cesar Chavez) // free

FOOD: Mole - a sauce that varies but often uses dried chili peppers, fried onions and garlic, nut pastes, chicken stock, and much more - takes over your savory senses at Mole to Die For Tasting Contest. Cover charge of $7 gets you free samples of over twenty-five types of this rich Mexican sauce.

Image: United States premiere of Mahler's Symphony No. 8, with the Philadelphia Orchestra.

7 p.m. // Mission Cultural Center for Latino Arts (2868 Mission) // $7