From: Sean O'Halpin Date: 2011-11-22T17:28:05+09:00 Subject: Re: Principle of Best Principles Not really on topic, but if anyone's interested in the gory details of the complexities of modelling music, see http://musicontology.com/. From the intro: "The Music Ontology Specification provides main concepts and properties [for] describing music (i.e. artists, albums, tracks, but also performances, arrangements, etc.) on the Semantic Web." Disclaimer: Yves Raimond, one of the authors, sits behind me at work. Cooking up more fiendish things no doubt. Regards, Sean