The Matrix was a club in San Francisco in the late 1960s. Opened 13 August 1965 by Marty Balin so that his band, Jefferson Airplane would have a venue to play, many notable concerts were played there. The Doors, Quicksilver Messenger Service and the Velvet Underground all played gigs there. The club closed in 1972. This page is a candidate for speedy deletion. ... Marty Balin (born Martyn Jerel Buchwald on January 30, 1942, in Cincinnati, Ohio) is an American musician. ... Jefferson Airplane was an American rock band from San Francisco, a pioneer of the LSD-influenced psychedelic rock movement. ... The Doors, formed in 1965 in Los Angeles, is a popular and influential American rock band. ... Quicksilver Messenger Service was one of San Franciscos original psychedelic bands of the late 1960s. ... The Velvet Underground and Nico (from left to right: John Cale, Nico, Lou Reed, Sterling Morrison, and Maureen Tucker) The Velvet Underground (Affectionately known as The Velvets, or V.U. for short) was an American rock and roll band of the late 1960s. ...