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.)