Difficult yes. Fun yes. And I hate listening to myself sing cause I get so nervous... But it was still cool to hear it in rounds.. Particularly because I've always found the melody somewhat haunting. It's still tempting to sing the four parts of Star Wars by Moosebutter (http://www.youtube.com/watch?v=lk5_OSsawz4#) and try and get a decently timed recording of it.. Particularly so since the sheet music was made available. But we shall see.<br/><br/>I love both of these songs.. Need to add them to bookmarks or something when I get home. Thanks for sharing them. :-)