Here we have a very different kind of show—three fine local bands taking the stage together for a tripartite experiment in collaboration. Part one: a round-robin of short sets from each act. Part two: members of each band sit in on each others' songs—P Smoov (of Fresh Espresso) adds vocoder to Head Like a Kite's electro rock, Truckasauras provide analog instrumentation for Fresh Espresso's raps, etc. Part three: everyone onstage all at once for some epic jams. Part four, according to HLAK drummer and Stranger contributor Trent Moorman: "We fill Neumos with three feet of warm mud, blindfold everyone, and play 'Mr. Vodka Shot's Wild Hide-and-Go-Find-the-Bowling-Trophy.'" (Neumos, 925 E Pike St, 709-9467. 8 pm, $10, 21+.)