Jon Irabagon/Barry Altschul Duo + Mostly Other People Do the Killing

A saxophonist who refuses to conform to jazz orthodoxy—of either the mainstream or avant-garde variety—Jon Irabagon simply can't be pinned down. Tonight he appears as part of the irreverent avant-bop quartet Mostly Other People Do the Killing (10pm), as well as in a duo with veteran drum powerhouse Barry Altschul (8:30pm).