In 2007, trumpeter and composer Cuong Vu moved from New York to Seattle, where he teaches music at the University of Washington. Bill Frisell, the versatile guitarist, made the same move years before, and he just returned to New York recently. But the two overlapped on the west coast for over decade—along with bassist Luke Bergman and drummer Ted Poor. The quartet recorded Ballet, a tribute to composer Michael Gibbs last year, and Vu and Frisell collaborated as far back as 2005 on Vu's It's Mostly Residual. Change in the Air is the hippest of their collaborations to date: a session of all-original music by all four members of the "4Tet". And every tune is fascinating, a perfect match for this balanced, always-interesting band. - PopMatters, Will Layman