The Blanton knows that SXSW starts this weekend, so it's not just whistling classical Dixie here. No, it's bringing out some of the fiercest aural firepower around: Austin favorites Mother Falcon perform songs from their upcoming album; Peter Stopchinski of the Golden Hornet Project proffers his Zen Songs; One Ounce Opera highlights glorious bits from the classics; the Bel Cuore Saxophone Quartet unleash the collective might of their mediated lungs; the vocal ninjas of Convergence conspire a choral glory with members of Conspirare and Roomful of Teeth. And this whole scary-impressive musical evening ends with a community sing-along of Queen’s "Bohemian Rhapsody." Recommended? Duh. Sun., March 10, (2:00) (2013). Free with museum admission.