This has nothing to do with anything we usually talk about on this forum, but I think it's neat. If you go to this site, you can hear an original Edison recording of a John Pilip Sousa March. Interested as I am in both music and history, I thought this was really cool. Here is the link:
http://en.wikipedia.org/wiki/John_Philip_SousaThe recording is near the bottom on the right hand side.