ShiroKuro It also shows where we pianists go wrong, because we're thinking about the score we use, moreso than the music it allows us to make.
Actually, we pianists are not wrong. It is the YouTube form being wrong, having no differentiation between the score and the performance. The ceckbox says:
Original Content
The content claimed in my video is my original content, and I own all of the rights to it.
This may be true for scores that are composed over 70 years ago. But if you get a Content-ID-claim for a cover of a pop song that is 10 years old, it is simply not true to claim "I own all of the rights to it".
Nevertheless Google AI told for the latter usecase to click Original content and write in the text box, who owns the rights of the composition instead โ In case, the claimant isn't.
I had this case:


Was wondering why Beyonce was named instead of Ed Sheeran. But "Sony Music Publishing" was a claimant. This intimidated me to take no action. Because I used a melody under copyright.
Btw, does anybody know if the claimant is one company or a list of many companies (comma seperated)? My guess is the latter one.
At the Lean On Me PIYW, I disputed (Original content) because I thought none of the claimants holds the rights on Bill Withers composition. Was successful after 3 days.