Review: At a unique CSPS show, silence, sound baths and Cerebro-like tech create a group trance — no rave or holy ghost needed

I show up about 15 minutes early to Concentric: Transcultural Resonance in Sound Practices on Tuesday, and the room’s already packed. There’s 50, maybe 60 people packed into the tiny CSPS Black Box Theatre when I arrive and slink towards the back into one of the chairs lining the walls.