Brubeck Brothers Quartet, Classified (Koch). The band headed by bassist/trombonist Chris and drummer Dan Brubeck is in top form on seven new quartet compositions, an impressive chamber suite and a stirring ensemble version of their father’s “Blue Rondo a la Turk.” Guitarist Mike DeMicco, pianist Chuck Lamb and the brothers have become one of the tightest ensembles in jazz without losing their sense of surprise, even abandon. When they combine with the Imani Winds for Chris Brubeck’s three-movement “Vignettes for Nonet,” they introduce a substantial new concert piece full of rich textures and rhythms.