Sorcerer, the third album by the second Miles Davis Quintet, is in a sense a transitional album, a quiet, subdued affair that rarely blows hot, choosing to explore cerebral tonal colorings. Even when the tempo picks up, as it does on the title track, there's little of the dense, manic energy on Miles Smiles – this is about subtle shadings, even when the compositions are as memorable as Tony Williams' "Pee Wee" or Herbie Hancock's "Sorcerer." As such, it's a little elusive, since it represents the deepening of the band's music as they choose to explore different territory. The emphasis is as much on complex, interweaving chords and a coolly relaxed sound as it is on sheer improvisation, though each member tears off thoroughly compelling solos. Still, the individual flights aren't placed at the forefront the way they were on the two predecessors – it all merges together, pointing toward the dense soundscapes of Miles' later '60s work.

Sambao is Kenny Barron's tribute to Brazilian music done his way. These original compositions by the peerless pianist combine jazz and samba in a modernistic way, with no copying of tunes from the master Antonio Carlos Jobim, and no hint of the populist Stan Getz approach due to the lack of a lead instrument, save Barron's attractive and inventive piano. He's accompanied by heavyweights of the Rio-cum-New York City scene, including guitarist Toninho Horta, bassist Nico Assumpção, and French-born percussionist Mino Cinelu. Barron's (and most people's) favorite jazz drummer Victor Lewis is included, reinforcing the rhythms expertly as usual.

Pianist and composer Paul Bley has been making records now for more than 50 years. His solo recordings encompass a great deal of his generous catalog. Bley has studied so many different aspects of jazz, and improvisational music both American and European, that these recordings always offer a revealing, no-holds-barred glimpse of where he's at as a musician at any given time. About Time, released on the Montreal label Justin Time, contains just two pieces: the 33-plus-minute title track and the Sonny Rollins tune "Pent-Up House," which lasts another ten. They reveal the entire range of Bley's considerable gifts as a pianist and improviser.

The pairing of electric guitarists Bill Frisell and John Scofield had to be one of the most auspicious since John McLaughlin and Carlos Santana. Acoustic bassist Marc Johnson's stroke of genius in bringing the two together on Bass Desires resulted in a sound that demonstrated both compatibility between the guitarists and the distinctiveness of the two when heard in combination. Add drummer Peter Erskine and you had a bona fide supergroup, albeit in retrospect a short-lived one, before Frisell and Scofield would establish their own substantial careers as leaders. The guitarists revealed symmetry, spaciousness, and a soaring stance, buoyed by the simplicity of their rhythm mates. This is immediately achieved on the introductory track, "Samurai Hee-Haw," as hummable, head-swimming, and memorable a melody as there ever has been, and a definite signature sound.