My key:

[mtuandrew]

Your result for What's your key signature?...
A Major

Comments

[amandamanet]

Despite clarinets being tuned in B Flat, a good number of Mozart’s clarinet based works are written in sharp key signatures, notably including a lot of A Major. I guess he had some sort of grudge against the poor clarinetist he hired.

JUST NO. ORCHESTRAL CLARINETS ARE TUNED TO A. GAAAAAAAAAAH

/is dead