The high-tech concept for Grateful Dead drummer Mickey Hart’s Mysterium Tremendum is way too difficult to describe in terms commonly understood by humans. Just know that, like pretty much everything Mickey Hart has collaborated on in his life, experiencing Hart’s “music” live is a much better investment than purchasing and playing it on your living room stereo. Unless you’re on acid—then it’s awesome even if you listen to it in a Costco produce cooler. But no matter how high Hart ascends, he’ll never atone for performing “Fire On the Mountain” as a rap shortly after Garcia’s death, the musical equivalent of taking a dump on Jerry’s headstone. MIKE SEELY

Wed., May 9, 8 p.m., 2012