We've got about 400 videos on our YouTube teaching channel and had three copyright claims in five years.
Basically the computer throws up some positives and some false positives. If you log an appeal,
which is what we do, the appeal is sent to the copyright holder who will the listen to the tracks
and can continue, or cancel, the action. All ours bore no relation to the other track and were cancelled.

If your track is compared to a particular song, it may be that the song has been recorded by several
artists on different labels and so each of them will have a copyright claim against you and will have
the same option of continuing or cancelling. If anyone continues with the action, take down your video
immediately, or risk losing everything you own.

Hope this helps.

ROG.