Hi fredtep,
By default on JA Muzic template, each Album of an artist is a Joomla article in the Albums category filtered by author (Artist). In this case, you just need to create a Joomla article and insert the jamedia codes containing the ids of .mp3 files like this snapshot: http://static.joomlart.com/images/userguide/ja_templates/ja_muzic/album-class.jpg
In addition, you can try to refer our JA Muzic template and JA AVTracklist plugin userguide again because your membership account has full permissions to access all our JA product’s documentations, except JA Job Board component’s related sources.
– JA Muzic userguide: http://joomlart.com/documentation/joomla-templates/ja-muzic
– JA AV Tracklist: http://joomlart.com/documentation/Joomla-Plugins/ja-avtracklist