by Scott YanowDrummer T.S. Monk's sextet has quickly become one of the top repertory bands of hard bop. They revive quite a few obscurities on their Blue Note CD, including such forgotten compositions as J.J. Johnson's "Kelo," and Clifford Jordan's "Middle of the Block," and Idrees Sulieman's "Doublemint," songs that are not exactly performed every day. They also perform more recent compositions by the likes of James Williams, Bobby Watson, Donald Brown and some of the bandmembers. Trumpeter Don Sickler's arrangements and transcriptions insure that the band plays the songs properly. With consistently inventive solos from Sickler, altoist Bobby Porcelli (who often takes honors), Willie Williams on tenorand soprano, pianist Ronnie Mathews and bassist Scott Colley, there is no weak link to this excellent sextet. The band adds to rather than merely copies the tradition.