So I wasn’t even aware that LeRoy Bach, who plays with Baby Alright when he’s not sitting in with like every single band in town, has been bringing live music to the Rainbo on the regular for a little while. His Duels and Duets series matches him up with guests with impressive chops–Emmett Kelly, Tim Kinsella, and Jason Adasiewicz have all taken part in the past few months–for some happy-hour improv. He tells me it’s going to be happening weekly, for free, every Thursday from 6 till 8 PM. Tomorrow’s a rematch with Kinsella, and next Thursday Bach will be playing with Sam Wagster.