This accolade easily goes to the album Kind of Blue by Miles Davis. Recorded by Davis alongside his band (big shots Cannonball Adderley, John Coltrane, Bill Evans, Wynton Kelly, Paul Chambers, and Jimmy Cobb) in 1959, they were already one of the biggest bands in jazz at that time, though nothing could have prepared them for just how successful and influential this album would become. Many believe that, alongside his 1970 album Bitches Brew, this is the distillation of Davis' art as a whole, capturing the quintessential of what made him so great as well as the methods he used to capture the magic of the immediate moment over the premeditated.