Avant-electronic duo Matmos creates high-concept albums from digitally buggered audio samples (in 2001, they made a record based around sounds from cosmetic surgeries). Their latest, Supreme Balloon, was composed entirely without microphones, using only the direct input from an imposing assortment of vintage modular synthesizers. Live, Matmos might process sounds from such sources as a contact mic attached to a balloon, melting ice, or hair clippers as they shave a fan's hair into a Mohawk. Genius. With SF noise makers Wobbly. (The Triple Door, 216 Union St, 838-4333. 8 pm, $20, all ages.)