There's no question that the albums Miles Davis released with his Second Great Quintet represent some of the coolest, most exhilarating jazz ever recorded. This epic collection includes all five studio albums by the ensemble anchored by Herbie Hancock and Wayne Shorter, plus essential alternate takes. The group's slow expansion into the avant garde is a fascinating journey, best heard in the gorgeous open harmonies of "Iris," the aggressive improvisation on the giddy "E.S.P.," and the pulsating slow build of "Filles de Kilimanjaro."