Fascinating.

I’m glad you are almost ok.

I did not know that you had a transposition in effect but the change from concert to Bb instruments involves subtracting two flats (or adding two sharps). F concert, a ‘flatted’ key signature, becomes G, a ‘sharped’ key signature. F# concert also crosses the ‘barrier’ from sharps to flats if you call the result Ab instead of G#, to use the key signature with fewer accidentals (always a desirable goal).

I need to try some more tests now that I know transposition is involved.


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