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....