Gill,
The musical bill-of-fare was Jethro Tull's "Journey to the Center of the Earth"
I was a big Jethro Tull fan, but I've never heard of that one. Neither has
<http://remus.rutgers.edu/JethroTull/songs.html> and
<http://remus.rutgers.edu/JethroTull/disco.html>. Maybe it was someone else? Rick
Wakeman of Yes had an album by that name.
Mark Minton
