Gunnar,

Thank you very much for the e-mail! One of the documents you sent identified all of the songs with vocal harmony. Greatly appreciated!!

Don, the link for this info is below:
http://www.carillonstudios.ndirect.co.uk/disk1.htm

All of the songs with vocal harmony are indicated by "*". (Note: The first 10 albums don't show a vocal harmony track but I'm certain that some of the Elton John and Fleetwood Mac songs DO have vocal harmony. You may still need to play around with a few of those.)