If you look at the diagram below you will see the reharmonisation of the basic 2 5 1 cadence resulting in the “Coltrane changes”.
We will now take the first 4 bars of John Coltrane’s Composition “Countdown” and play it in all 12 keys moving in 4ths. Below are two examples of what to play using 4 note groupings [Tetrachords}
Coltrane’s countdown first 4 bars idea starting with D minor 7th
Coltranes’s Countdown up a 4th starting with G minor 7th
Coltrane’s “Countdown” changes chart
Play through all 12 keys for fluid jazz improvisation development in the John Coltrane style.
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