Kevin Whitehead

In a transitional period between different groups with Miles Davis and Anthony Braxton and his fusion band, Return to Forever, Chick Corea recorded a series of solo piano improvisations in 1971. Those recordings and a 1983 follow-up have been reissued in a three-CD box set.

Soprano saxophone can be an unforgiving instrument. It's hard to play in tune, and many players get a pinched or nasal tone like it has a bad cold. Its biggest proponents — Steve Lacy, Lol Coxhill — do influence Sam Newsome, but he stakes out his own turf with eerie-sounding, hoarse and hollow split-tones.

Jazz drummers leading their own bands often feature intricate rhythms and brisk, driving momentum. Paul Motian, with his slow tempos, loose timing and tunes that go with rainy days, is so self-effacing, he's almost an anti-drummer. A little rustle of brushes and the faint boom of a bass drum may be all he'll use to nudge the music on.