The High Zero Festival continues this weekend with a full slate of adventurous shows at Theatre Project. Both Lily Susskind ("Best Of Baltimore" winner for dance) and M.C. Schmidt (of Matmos!) are on tonight's bill. Sax legend Carl Grubbs presents his annual John Coltrane tribute concert at St. Paul's School at 7 pm. And local metal gods Kix play Rams Head. Tomorrow, the Avett Brothers come to Pier Six, and the third season of Treme begins on HBO.