This is a really Nerdy post.

Did you know that you can mathematically prove why some sounds sound good to our ear, and others sound like they are clashing? That's just awesome. I never really looked into it before. I knew it was possible but i never understood much about the way it worked.

I saw a wave graph of two notes. C and E. The waves intersect at predictable, repeatable intervals. I guess this makes sense thinking about how it sounds. Then another graph of C and D was displayed. The dissonance was clearly visible. The two waves looked terrible together.

This makes me think people can sometimes be compared to sound. Sometimes my "sound wave" looks like this when combined with someone else's:



























Then other people make it look like this:




























So much nicer.

Can I explain this? No. Can I describe the exact differences? Usually no. But its obvious. Kind of like how you couldn't verbalize all the mental calculations needed to throw a ball through a hoop, but actually doing it is easy.

The last third of 2008 has really been great for good graphs in my world. Props to awesome friends. Here's to the impending 2009 and hoping none of you out there have any interactions of the first graph kind.