[eichelbe]

I played a bit around... Whith chord style German in file 

[H] [B] [Am] [Hm] [Bm]

transposed by +1 becomes

[C] [C] [A#m] [Cm] [Bm] with Default/German display setting

while I would expect

[C] [H] [A#m] [Cm] [Hm]

And

[H] [Bb] [Am] [Hm] [Bbm]

transposed by +1 becomes

[C] [B] [A#] [Cm] [Bm] with Default Display setting
[C] [H] [A#] [Cm] [Bm] with German Display setting

while I would expect

[C] [H] [A#m] [Cm] [Hm]

Hoping that I'm not wrong with the transpositions/notation systems.

Thanks for looking at it,
Holger