title: Read out Time/Length/Duration of an Mp3 song in Java
body: <p>I wonder how I can read out the duration of an mp3 song. If I'm right it's not an ID3 Tag so I guess I have to calculate it somehow ?
  For the rest of the ID3 Tags I'm using this libary:
  <a href="http://javamusictag.sourceforge.net/index.html" rel="nofollow noreferrer">http://javamusictag.sourceforge.net/index.html</a></p>
  
  <p>Cheers</p>