Kevin Whitehead

In the last few years, some enterprising younger players have reinvented the piano-bass-drums jazz combo. It's not just that these trios play contemporary pop; it's also a shift in attitude. Vijay Iyer's trio doesn't worry about swinging all the time, although the buoyancy of swing inflicts its rhythms as much as hip-hop does.

Nicole Mitchell's Renegades matches exploratory playing with deep grooves and a tight ensemble blend. The new group is Black Earth Strings, consisting of flute, three strings and percussionist Shirazette Tinnin.

Jazz critic Kevin Whitehead reviews the latest CD by alto saxophonist Steve Lehman and his octet. In Travail, Transformation & Flow, Lehman continues his work using computer models to create and drive his improvisation.