title: parse .mxl file with Clojure
body: <p>I would like to parse an .mxl file (MusicXML) with clojure</p>
  
  <p>So far i've seen a lot of tools to work with .xml files but I can't find a way to work with .mxl, maybe i should convert mxl to xml first but i don't know how to do that neither.</p>