For the same reason, your system fails to work for either traditional or copyright-expired compositions. Someone may still own the copyright in a specific recording of a traditional folk tune, but that does NOT mean they own any rights over my, different, performance of that same tune. I have had a highlight muted because of this exact situation; a muted highlight from a live music stream is no use to anyone! And there is no adequate way of contesting the action on these grounds. Copyright in compositions and recordings is separate; get someone who knows the basics of the law to overhaul your systems for dealing with music copyright because they're laughably inadequate at present.
For the same reason, your system fails to work for either traditional or copyright-expired compositions. Someone may still own the copyright in a specific recording of a traditional folk tune, but that does NOT mean they own any rights over my, different, performance of that same tune. I have had a highlight muted because of this exact situation; a muted highlight from a live music stream is no use to anyone! And there is no adequate way of contesting the action on these grounds. Copyright in compositions and recordings is separate; get someone who knows the basics of the law to overhaul your systems for dealing with music copyright because they're laughably inadequate at present.