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Alvin Lucier is most famous for strapping electrodes to his scalp and, through a series of amplifiers, “playing” percussion instruments with his brainwaves. This was a bizarre idea when the sound artist first unveiled it in 1965, and it isn’t exactly “Oops . . . I Did It Again” today. But Lucier (at noon Saturday) and the burping, babbling sonic poet Jaap Blonk (at noon Sunday) are stars of the Outer Ear Festival of Sound, which runs through Nov. 22 at 5150 N. Paulina St. $40. 773-784-0449.
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