As soon as I uploaded Beethoven Piano Sonata No.32 Rev2. to YouTube, the following Content ID was filed. I guess they are automatically searching.
Now, a "Content ID claim" is a notice from YouTube that you may be using copyrighted content. You can dispute this claim and have it retracted, but it does not result in a copyright strike. However, the copyright holder may choose to monetize the claimed video, collect viewer data, or block the video in certain countries. For these reasons, I promptly filed a dispute.
I'm somewhat honored, but the following two are the content for which Content ID was filed, and apparently a portion of the second movement (the white line in the image above) corresponds to each of them.
I listened to it...I don't know...I wonder if there are some similarities....