Milestones (composition)

"Milestones" is a jazz composition written by Miles Davis. It appears on the album of the same name in 1958. It has since become a jazz standard. "Milestones" is the first example of Miles composing in a modal style and experimentation in this piece led to the writing of "So What" from the 1959 album Kind of Blue. The song's modes consist of G Dorian for 16 bars, A Aeolian for another 16 bars, and then back to G Dorian for the last eight bars, then the progression repeats.