The hAudio Microformat can now be transformed to four different flavours, RSS1, RSS2, XSPF, and RDF Music Ontology
The Newest Format is Mo hAudio which is an attempt at extracting a basic Music Ontology. A demo is available at http://weborganics.co.uk/mo-haudio/ . One of the questions you may ask is why all the different formats , Well the first answerer is its cool isn't it? And the second would be, proof that the contributors of hAudio got the common basic semantics right. I would also say that if you are going to publish music on your website, why not publish it in hAudio because It's easy to do...
<div class="haudio"> <a rel="enclosure" class="fn" href="http://mywebsite.com/file/myfile.mp3" type="audio/mpeg">My Groovy Choon</a> </div>
... and you get the added benefits of all the other formats too. There Is just one more transformation (available end of august) hAudio to M3U which will pretty much make the job of bootstrapping hAudio to as many different formats as I can complete, If you think I left something out please let me know.