Autumn Leaves is outlined as a basic chord progression in E minor, which works well on the guitar, G minor, the most widely used key in jazz and A minor which is great as a reference key. Bars 27-28 are written with the fundamental harmony, just the tonic minor chord. These two bars are altered in most jazz fake book versions. Autumn Leaves has a 32 bar AABC form.

E minor

Am7         |   D7    |   GM7    |   CM7    |   F#m7b5     |   B7      |   Em7     |   Em7

Am7         |   D7    |   GM7    |   CM7    |   F#m7b5     |   B7      |   Em7     |   Em7

F#m7b5   |   B7    |   Em7    |   Em7     |   Am7           |   D7     |   GM7     |   CM7

F#m7b5   |   B7    |   Em7    |   Em7     |   CM7           |  B7       |   Em7     |   Em7

G minor

Cm7 F7 BbM7 EbM7 Am7b5 D7 Gm7 Gm7

Cm7 F7 BbM7 EbM7 Am7b5 D7 Gm7 Gm7

Am7b5 D7 Gm7 Gm7 Cm7 F7 BbM7 EbM7

Am7b5 D7 Gm7 Gm7 EbM7 D7 Gm7 Gm7

A minor

Dm7 G7 CM7 FM7 Bm7b5 E7 Am7 Am7

Dm7 G7 CM7 FM7 Bm7b5 E7 Am7 Am7

Bm7b5 E7 Am7 Am7 Dm7 G7 CM7 FM7

Bm7b5 E7 Am7 Am7 FM7 E7 Am7 Am7

This version in G minor , with bars 27-28 altered is the Real Book type version based on the Miles Davis approach to Autumn Leaves

Cm7 F7 BbM7 EbM7 Am7b5 D7 Gm7 Gm7

Cm7 F7 BbM7 EbM7 Am7b5 D7 Gm7 Gm7

Am7b5 D7 Gm7 Gm7 Cm7 F7 BbM7 EbM7

Am7b5 D7 Gm7C7 Fm7Bb7 Eb7(#9) D7 Gm7 Gm7