Probably found before, but his name is Ferruccio Busoni. He died in 1924, meaning copyright laws stating life + 70 years no longer apply to his works as it would have only extended to 1994.
Here's a song (on pianoroll, therefore still TECHNICALLY him performing it as well) that would make for a hella hard 12:
Here's a song (on pianoroll, therefore still TECHNICALLY him performing it as well) that would make for a hella hard 12:









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