Apparently C Sharp Minor is unheard of outside of the piano. Only two hugely successful symphonies have been made in this key. I was spurred on by Beethoven’s astonishing Moonlight Sonata and was surprised to see how left out this key is.
Even Johannes Brahms still felt the need to rewrite his C-sharp minor piano quartet in C minor
That’s saying something, the King even altering a masterpiece.
I have never understood why some keys are more challenging for professionals. I did once read that sharps are better than flats for amateurs but these professional orchestras are not amateurs.
I’m doubt this is the case, however. What could be the reason that this key is not suited for anything other than the piano?