Posted on 2. July 20091. July 2009 by Proud Music TeamWhat are the advantages of the Proud Music Library? A summary of good reasons for using the Proud Music Library are explained on our info page. Related posts: Proud Music Library update: more than 6000 royalty free tracks online! What are the license models? What is the price of a track? Library update: More than 5000 production music tracks online!