Quadraphonic sound used two front and two rear speakers, and several formats were developed. Recordings on vinyl records could also be played on standard stereo turntables; however, one technique ...

Four musicians performing in a quadraphonic sound setting will explore themes of the doppelganger through electronic ...

If anything, music has the longest history of being sold in multichannel formats thanks to the brief rise of four-channel quadraphonic records in the 1970s. After quad faded away, multichannel ...

Nov. 9----Bolinas resident and pioneering electronic musician Suzanne Ciani performs in quadraphonic sound at 8 p.m. Saturday at the 4 Star Theater at 2200 Clement St. in San Francisco.