Morton Subotnick’s Buchla synthesizer compositions from the ’60s still sound innovative today. Their insectoid, alien timbres and shockingly unpredictable dynamics can be heard in the output of many of the world’s boldest producers of abstract electronica from the ’90s onward. Tonight’s program, “From Silver Apples of the Moon to a Sky of Cloudless Sulphur,” offers a career retrospective of the 80-year-old Subotnick’s pioneering electronic music, augmented by the granulated, microcosmic imagery of German visual artist Lillevan. (Town Hall, 1119 Eighth Ave, townhallseattle.org, 7:30 pm, $17 adv/$20 DOS, all ages)