title: Sheet music library
body: <p>I'm a python hacker looking to build a sheet music app.  I'm comfortable with reading/understanding sheet music (played piano for many years).  Here are my complete newbie questions..</p>
  
  <p>Is there a standard for representing notes digitally?  I don't want to reinvent any wheels.</p>
  
  <p>Given a sequence of notes and durations, is there a library for displaying these in a sheet music format?</p>
  
  <p>Basically I'm looking for a place to get started.  I'm not heavily into graphics, so a existing open-source library would be awesome.  If none exists in Python, I'm competent at Java/Javascript/C as well.  </p>
  
  <p>Thanks</p>