Autumn Leaves

It's the first tune almost every jazz student learns, and for that reason the one most often played on autopilot. Twenty-three chords, seven tonal centres.

The trap is the four half-diminished chords. They come in the minor section, and the scale most commonly taught for them is precisely the one Thiago considers the worst of the available options. Nine of the twenty-three chords admit more than one reading — in a tune most people play with two scales.