I wonder who composed those lyrics.
La raspa is danced in New Mexico, and I have seen Mexican troupes dance it, but lyrics are new to me. It seems to me it would be difficult to match the dance movements to those lyrics. Or is there different music to those lyrics?

http://www.youtube.com/watch?v=Ye3EpfeIq4A&feature=related

The above is close to the way we were taught in New Mexico. Notice the bored expressions- that I remember too.