Martin Bisi opened BC Studio in Brooklyn’s Gowanus neighborhood in 1979 and found himself at the intersection of the city’s new, radical forms of music. Along with Bill Laswell, he started producing music for early hip-hop artists such as Afrika Bambaataa. Simultaneously, Bisi was steeped in the downtown experimental rock sensibility exemplified by artists like Lydia Lunch and DNA, who then inspired Sonic Youth and Swans. The latter two bands made seminal records at BC, along with countless others. Today, the effects of gentrification threaten the studio’s existence. Sound & Chaos — a new documentary about Bisi and his studio, which screens at the New Parkway Theater (474 24th St., Oakalnd) on Tuesday — tells the story. After the screening, Bisi will perform his own left-field rock music at The Stork Club (2330 Telegraph Ave., Oakland) on a bill with local experimentalists Grex and Third Thursday Band, plus Savage Riposte from France.