Five of the seven selections on this LP from the small K2B2 label features bassist Buell Neidlinger and tenor saxophonist Marty Krystall (who takes one piece on bass clarinet) playing in quartets with trombonist Glenn Ferris and either Billy Elgart or Deborah Fuss on drums; in one case keyboardist Don Preston is in Ferris' place. The music is post-bop (somewhere between hard bop and the avant-garde) and most notable for the fine playing of Krystall. Two other numbers are historical and were released for the initial time on this album. From 1961, Neidlinger plays a duet with tenorman Archie Shepp, and the duo is joined by pianist Cecil Taylor and drummer Dennis Charles on a version of "Section C." An interesting release that has not yet been reissued on CD, although the two earlier tracks have been repackaged by Mosaic.