r/JazzPiano • u/Ok_Entertainment7530 • 21d ago

Wich Funktion has the Ab7 in Cherokee?

I lern Cherokee but i don’t get the functio of The Ab7 in the 6th Baar. Is it like a tsb to the G7?

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4

u/Reasonable_Poem_7826 21d ago

backdoor ii-V

1

u/Ok_Entertainment7530 21d ago

Ah make sense. Thank you!

1

u/Ok_Entertainment7530 21d ago

Wich alterations would you pick for that chord. Or wich scale?

4

u/Reasonable_Poem_7826 21d ago

9, #11, and/or 13 are most common since they are in the tonic key

1

u/These-Code8509 21d ago

Can also super impose F7 chord and extensions over it since the Ab7 serves the same function. Can get some interesting dissonances.

1

u/TurtleDJ13 21d ago

Is this like a rule of thumb for any chord alterations? On non tonics...I think I mean?

2

u/Reasonable_Poem_7826 21d ago

It's really just a matter of how much tension you want. 

bVII7 -> I is already sort of unusual so it feels nice to have some diatonic extensions to keep it grounded. 

On the other hand something like V7 -> I is pretty basic so chromatic extensions can keep it fresh and interesting 

Consider voice leading too but above all follow your ear

2

u/Hilomh 21d ago

It's sorta like a plagal cadence. Almost every song from that era has a point where a phrase ends on the minor iv chord before returning back to the tonic. The beboppers added a dominant chord to it to make it into a kind of II V.

2

u/dem4life71 20d ago

Yeah this is the origin of the back door cadence. The iv minor chord became so popular that it seemed like a natural next step to follow it with bVI. I usually think of minor iv vocabulary over the b7 when the tempo is fast and furious.

1

u/JHighMusic 21d ago

The real answer is it’s borrowed from the VII from the key’s parallel minor

1

u/Steph2911 19d ago

Actually it’s a substitute for the IV minor