#1
couple of things
are these two progressions i've written out (one a blues progression, another a blues/jazz progression) sound compositionally? i mean they sound good to me so my guess is yes.
and maybe a little help just to help me with the key, i think i have them, but a little reassurance never hurt.

the blues esque progression:
I-IV-IV-VII-I-IV-V-IV-VII-I
G7-C7----C7-F7--G7-C7--D7-C7-F7-G7-C7--
standard 12 bar form, im thinking G mixolydian, but the safe bet is g pentatonic probably right? i've been just using the G7 arpeggio, the C7arpeggio, and the D7 arpeggio though.

the blues/Jazz esque is a ii-V-I-V-IV-I
Aminor-D7-Gmaj.-D7-C7
im just thinking G-major would work, but im not sure.
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