Dom7, "Bluessevenths" R important
in both jazz and blues to get the
sound.
The Paralell-Dominants to the C
maj chordscale;
I ii iii IV V vi vii
Cmaj7 Dmin7 Emin7 Fmaj7 G7 Amin7 Bmin7b5
G7 A7 B7 C7 D7 E7 F#7
V / I V / ii V / iii V / IV V / V V/ vi V / vii
This will be all U need for ex."backcykling"
the turnaround. Thats a very common thing
to do in Jazzblues. The formula is 5-1-4
etc, etc.
by Paxom, 2020.