Max,

So far as I know, the ASCAP and BMI licenses would only cover performance of the music, not reprinting the lyrics. I think the lyrics require separate permission. So I hope you have the authors' permissions in writing. If you don't, maybe you should get back in touch with the authors that previously e-mailed or phoned their permission and ask them to send a backup FAX. I think documentation will help a lot.

Some of the occasional posting of ©-ed lyrics to this forum should (if the world were reasonable) come under the heading of fair use. But maybe you should check with a lawyer. You might have to rummage through the forum archives and delete some postings of copyrighted lyrics after a while.

Check the return address on the letter and make sure it corresponds to an actual address of the NMPA, or of a licensed law practice actually employed by the NMPA. If the two don't match, the letter may be a hoax or a scam.

Of course, this is all private opinion. It is not legal advice and doesn't establish a lawyer-client relationship, etc.

I hope you can get it all worked out.

T.