Most musical forms have been so thoroughly explored that it is rare to encounter something truly original. Jacam Manricks' "Labyrinth" offers a journey through musical territory that is not yet on the maps. It's not a free-form avant-garde workout, but it is unpredictable enough to keep listeners on their toes. All five musicians --- Manricks (saxes, clarinets, flutes), Ben Monder (guitar), Jacob Sacks (piano), Thomas Morgan (bass), and Tyshawn Sorley (drums) --- are so locked in, they perfectly support each other's flights. And each is capable of soaring. Manricks' exploits the vocabulary of his instruments so exhaustively, it's dizzying. Monder is equally versatile with a range stretching to a raucousness recalling John McLaughlin. The band is joined by an eight-piece chamber orchestra on "March and Combat," the album's most intriguing track. In his notes Manricks acknowledges debts to Debussy, Schoenberg, Ravel, Gil Evans, and the painter Mark Rothko. That list is a testament to the adventurous spirit pervading the album.