And then there were four: Kneebody settle into life as a quartet

As far as album titles go, Kneebody’s Chapters, is pretty damn on the nose. The record, which came out in October, is the instrumental avant-pop-jazz omnivores’ first full-length since they announced the departure of founding bassist Kaveh Rastegar last February, along with their transformation from a lean five-piece into an even leaner quartet.…