Boris, with Red Sparowes, Helms Alee. Neumos, 925 E. Pike St., 709-9467. 8 p.m. $15. Behold: the utterly hypnotic Boris. It’s really very simple. If you want to get your mind blown to shiny little smithereens, this Japanese trio is wielding the sonic hammer. The tag ‘experimental’ barely contains what happens in their stoner-approved crush of E-bowed guitars, manipulated feedback and bombastic drums; or in the stealthy, percolating spaces of songs like “Rainbow,” a collaboration with psychedelic guitarist Michio Kurihara. Boris’ many working partnerships with bands like Sunn O))) have earned them audiences from across the style spectrum. This fall’s collaborative album with the Cult’s Ian Astbury, BXI, is nearly their 20th release in 18 years. An output that productive and dizzying makes musical possibilities seem infinite after all. RACHEL SHIMP