Alternatively, you are playing from a modern typesetting of the music which has some extra notes added to detect that you are making a derivative work through y

Alternatively, you are playing from a modern typesetting of the music which has some extra notes added to detect that you are making a derivative work through your performance, like how map makers add "trap streets" to their works. Being serious, though, I believe that a typesetting of a piece of public domain music can be eligible for copyright, but I don't believe that a performance from that typesetting can count as a derivative work of the typesetting, even if the musician faithfully performs a few "new" notes added by the typesetter.