Hey guys! I'm not sure if this is the exact place to post this thread but there really isn't a subsection for music theory. And maybe thats ok because this really isn't a BIG theory question. Ok, I'll cut to the chase. I have this weird REX file called 'nd_bs120_decimate_A#m.rx2'. So basically, it's telling me that the key of this particular REX file is in A#minor. Now I know there is a key of A-minor; and I know there is a key of A-major. But as far as I know there isn't a key of A#minor on the circle of fifths. Am I missing something or, did someone just mislabel this REX? Because it's super annoying trying to compose stuff around this REX without know the key.