Yea Bruce. I knew I liked you. I taught HS math for five years and often fell into the trap of trying to convince skeptical students that math really was worthwhile for everyone. I sincerely believe that a person's ability to think rationally and creatively is limited by language--and mathematics is just one of many languages. Not until I studied calculus could I express the idea of changing change. I also believe music is a language, and I wish I understood more theory. BTW, there is a good thread here about harmonization.