Untagged audio
Artists/bands/producers can upload 2 versions of their song, one untagged and one tagged. They can use the tagged version for general streaming to the public and the untagged version for licensing and sales.
A "tagged beat" is a demo version of an instrumental that contains distinct audio watermarks that typically plays throughout the entire track. The purpose of producers tagging their instrumentals is to prevent piracy and to encourage serious recording artists to purchase a license.