At the time of creation of cui material the authorized is responsible for determining.

The authorized holder of a document or material is responsible for determining, at the time of creation, whether information in a document or material falls into a CUI category. If so, the authorized holder is responsible for applying CUI markings and dissemination instructions accordingly

Ithink it's a) the user may use the song without the permission of the creator but only in certain circumstances

Delete it because it's scam.