I'm of the sort that usually doesn't bother to listen to song lyrics. I judge a song almost completely by how it sounds - and often I'd rather that the people with annoying voices would just be quiet so I could listen to the music!
I was listening to the music of the Annie Moses Band this evening. I'd never heard them before, but I was thinking that I really liked their instrumental pieces but I could do without the vocals. Then they started singing about numbers - yup, a song called Golden Ratio. Now that's my kind of lyrics - take something really neat about the physical world (in this case the number 1.618033988) , flesh out the concept with clever language and point it all back to the Creator.
Check it out at their website.