[Zubersoft]

D# and G# are theoretical key signatures and are therefore almost never used. I was using sites like this for reference: https://www.basicmusictheory.com/d-sharp...-signature

Based on that, and the fact that there is no minor equivalent, I do not see a point in including theoretical keys in the list. If you feel this is incorrect, I'm definitely open to changing it, I'd just love to know the scenario in which it's useful.

As far as the arrows being up/down versus right/left, I'm fine with changing it. I'd love to hear what other people think too. I'm torn... I think up/down requires less movement of the hand to change the keys which is nice, but I think the UI looks a little more cluttered that way.

As far as your song being Gm, I'm not sure what's going on there. What should have happened is that Bb should have been selected as the equivalent major key, but something seems to be broken on the key selection dialog as I cannot switch to flats for some reason. I will get this fixed (along with the other reported issue where changing the key doesn't update the song in the background).

Thanks,
Mike