Josh Roseman’s Extended Constellations

Heah, getcha diaspora heah! The dubadelic trombonist with the witty way of dispensing grooves augments his septet for the weekend, giving 12 instrumentalists jobs during the recession. That means his improv-tronics and their drum ‘n’ bass proclivities will have a jazz richness, whether romping through the Beatles or a nifty little number entitled “Olsen Twins Subpoena.” Bring your butt along; he’s got Jamaica in his soul.

Jan. 16-17, 9 & 10:30 p.m., 2009