Definitely get in touch with Dave Dove. His organization, the
Pauline Oliveros Foundation, has brought Peter Brotzmann, Evan Parker, and Oliveros herself to Houston in just the last couple of months.
Also, check out
Sound Exchange. It's a pretty cool little record store, and they send out a weekly e-mail newsletter with upcoming concert information.
As for vegetarian food: two of my favorite restaurants are Madras Pavilion (South Indian kosher vegetarian cuisine) on Kirby just north of 59; and Dimassi's (Lebanese buffet) in Rice Village. The best grocery store is Central Market.