Guest, I agree that that's ridiculous. Hal Leonard claims a lot of improbable copyrights. Another example: I once saw a music book where a company claimed a copyright on the following:

"By the waters of Babylon we sat down and wept, when we remembered Zion."

Hmmm, that was a psalm, originally composed before the time of Christ and translated into English under King James (17th century, I believe). Something tells me it's too old to copyright.

Wysiwyg, that is good advice. Also a visit to ASCAP (U.S.) or BMI (U.K) might help. Where do people in other nations turn?