title: iPhone Music Library Access
body: <p>I would like to develop an application for iPhone that classifies the user's music according to user-defined genres. The application should be able to have access to iPhone's Music Library and work on the files, this is, fetching an mp3 file, apply some DSP ( like MFCC coefficients ) and then save the results on the file itself. </p>
  
  <p>Is it possible to obtain a song as a file and work on it? </p>