Thanks to the 720p raws with 5.1 sound I've been able to demux (remove) the main dialog. This allows for karoke and even (mostly) clean soundtrack rips!

This uses the two front channels, there's a small vocal echo, regardless of channel (I made this for my Sister as she's been wanting to learn the song, and she finds it's nice to have a quiet vocal "guide"). I might make a second version using the back surround channels as those have quieter "back up" singing.
For MP3 downloads check here:
http://www.mediafire.com/?b9j49e7j8tfnx

Requests and Suggestions Welcome. Enjoy fellow Bronies!