If you're all revved up from the Missoula River Fest, head on over to the official afterparty, a benefit for the Max Wave, at Monk's, 225 Ryman St. Tunes from Tim Carey, Kapture and Jason Woo are all on deck. 9 PM. $5, 18-plus. Check out themaxmissoula.org to find out about this plan to transform a degraded section of the river.