Yes, I do understand being upset about the copyright issues around the best-known song, but quite frankly, it's as close to folk music as the popular culture is going to get and for that reason I like it!

Having said that, here are a few contributions:

(To the tune of (I think) the Merry Widow Waltz)
Happy birthday, happy birthday, We love you.
Happy birthday, and may all your dreams come true.
When you blow out the candles, one light stays aglow,
It's the love-light in your eyes where-e're you go.

This round has an original tune (not mine). I could probably rustle up a midi on request:
We wish you a happy birthday
A joyous and celebrated birthday
To our dear _______
We wish you a long, long life!

As for the lyrics posted by Mark Cohen, they are in fact the chorus to the song WYSYWYG referred to by John McCutcheon. The title of the song is "Cut the Cake".

But I still like "Happy Birthday to you..."

Allison