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I need help understanding why the notes in this turn are B-A#-Gx-A#.
I don't understand how the double sharp affects the turn. I would assume that instead of A# being the "base note" (for lack of a better word), it would be C because of the double sharp. Then the turn would be D-C-A#-C.
I think the problem for me is the turn, but It's my understanding that turns go up one whole tone from the base, the base, down one whole tone from the base, then base again.
If A# is the "base note" then I would think that the turn is C-A#-G#-A#.
Every answer that I have found online gives the notes, but not a very good explanation of how they got those notes. I don't doubt that the notes are B-A#-Gx-A#, but i don't know why. Please help me understand what part of this double sharp turn makes it so different than what I would expect.