"Kind of Blue" is unquestionably the drive reference of postwar jazz. Here, the break with the aesthetics bop is consumed ..... time of this disc. For this and no one will remember, "Kind of Blue" was treated for a time as a failure. Miles himself immediately return to a more hard-bop music with the same training and then with the next (Hank Mobley supplanting Coltrane and Adderley, and Wynton Kelly taking his place at Bill Evans). In fact if this record Announces thing is the sound of the 60's to come, one of the quintet of Miles 65-68 years (with Shorter, Hancock, Carter and Williams-Miles of more training for my taste ), that of Bill Evans Trio with Scott LaFaro and Paul Motian is modal flights of Coltrane and his quartet magic, it's the sound of the Blue Note too. Quite simply, never failure was no longer shining on this disc.