Over the past ten years or so, a circle of musicians has coalesced in New York, and they are making some of the most refreshing music in what is already an incredibly fertile period in jazz. This crew, which rapper Mos Def has deftly incorporated into his hip-hop explorations, includes artists like keyboardists Robert Glasper and Marc Carey, and vibraphonist Stefon Harris. Their music is rooted in the traditions of African-American jazz, but incorporate more contemporary soul and R&B rhythms, as well as textural synthesizer sounds and electronics.