After Kind of Blue , Miles wanted a new group and new sound. In late "64, he found it: his "second great quintet" with Wayne Shorter, Herbie Hancock, Ron Carter and Tony Williams. This beautiful box tells the tale of Miles" two-year quest to find his new sound; four quintets (with the aforementioned plus George Coleman, Sam Rivers, Frank Butler and Victor Feldman) are heard live and in the studio doing All of You; So What; Milestones; Bye Bye Blackbird; Basin Street Blues; Autumn Leaves; My Funny Valentine 46 tracks from a fascinating period, eight unissued and three unedited for the first time! Invaluable