Hey Greezy, I just got some information from Vincent Accordions! I figured that you might be interested in knowing that he said that the Cajun diatonic accordion can be built in 12 different keys!!

G,G#,A,Bb,B,C,C#,D,Eb,E,F,F#

And that's not even mentioning
low D, low f, and low G! And there may be other low keys that I don't know about yet. Good luck in finding your most resonant preferred key. I too am on the same search. And from the looks of things, we have 12 different keys to have to choose from plus the low-key genre! Holy mack!

Thanks Jude! WTF??!! That is very surprising information! I wonder why it is not more known or talked about? Sounds like some information hoarding has been going on to me. So let me get this straight:
ALL POSSIBLE ACCORDION KEYS

G, G#, A, Bb, B, C, C#, D, Eb, E, F, F#

LOW D, LOW F, LOW G... so far....