's is a double-disc set that's separated into two halves. The first contains all 12 tracks cut in the studio in January 1949 with . The second contains three radio broadcasts that the nonet performed in September 1948 at the in New York City. All the recordings have been completely remastered, resulting in the best ever sound for these recordings. The set also features brand new liner notes from , plus the original liners. All the added features help make the definitive chronicle of one of the most important eras in history. ~ Stephen Thomas Erlewine