MOPDTK’s “Mauch Chunk”

Mostly Other People Do the Killing’s latest iteration, a quartet, is led by bassist Mopppa Elliott, whose modern bop compositions are featured on the band’s new album, “Mauch Chunk,” a rollicking, raucous  dash through jazz history that’s firmly in the right now. MOPDTK’s sax man is Jon Irabagon, one the most exciting players in the world. Irabagon’s boundless artistry is on display here with his band-mates, as well as on a recent experimental solo soprano sax recording, “Inaction is an Action,” and a straight-ahead project called “Behind the Sky.” He’s prolific, fearless, and super heavy, while somehow retaining a sense of humor. Irabagon and MOPDTK make music that invites (and bears) repeated listening.