Lucas Niggli, Tim Berne and Angelica Sanchez + Oliver Lake, Christian Weber and Dieter Ulrich

The Intakt label established its sterling reputation by documenting the finest Swiss improvisers, but it's performed as valuable a service by facilitating meetings among Swiss and American artists. Tonight's double bill puts that effort to action: The 8pm set has altoist Oliver Lake fronting a Swiss rhythm section, and at 10pm nomadic percussionist Lucas Niggli (formerly Swiss, so it counts) tangles with saxophonist Tim Berne and pianist Angelica Sanchez.