During the Houston Symphonyย’s Music of Star Trekย™ & More Sci-Fi, ย“Attendees dressed as their favorite characters can participate in the symphonyย’s costume contest,ย” according to press materials. Ah, yeah. Geeks, donย’t fail us now. Hearing a full orchestra play soundtrack selections from Deep Space Nine, Voyager and Enterprise would be even better sitting next to some dude holding up the Vulcan salute and wearing a tight, pastel sweater with a homemade logo on the left breast. But donย’t be surprised if you see HAL 9000 or Count Baltar in the crowd as well ย— the show also includes tunes from 2001: A Space Odyssey and Battlestar Galactica. Cย’mon, Trekkies, donย’t be shy ย— you only live long and prosper once. 7:30 p.m. 615 Louisiana. For information, call 713-224-7575 or visit www.houstonsymphony.org. $25 to $95.

Thu., July 9, 7:30 p.m., 2009