I’ve never developed much of a taste for the music of Frank Zappa—sacrilege in some quarters, I know—so I didn’t really get familiar with longtime Zappa keyboardist Don Preston until I heard him on some great 80s records by Los Angeles clarinetist and bandleader John Carter, in particular the expansive live quintet album Comin’ On (Hatology), with coleader and cornetist Bobby Bradford. Preston played piano on the record, as well as some pretty spaced-out synthesizer lines that still rattle me when I listen to them now. Over the years I came across Preston’s name on a wide variety of recordings, including the Carla Bley and Paul Haines masterwork Escalator Over the Hill and albums by John Lennon, Robby Krieger, the Residents, and Eugene Chadbourne. But some of his most radical work was released only earlier this year on Filters, Oscillators & Envelopes 1967-82 (Sub Rosa), a bracing collection of experimental electronic music.