First, I realize how stupid this question probably is, and how idiotic it makes me look to not fully realize the difference between Blues and Jazz. That aside, I'm a bit confused on the matter. I did some research, listened to many songs between the two genres, and came to the conclusion that blues was a slower, simpler genre compared to Jazz, which is more swing and has more instruments and chords and such. Well, when I wrote this piece up really quickly, and showed it to my friend, I was instantly confused when he said this was Jazz, not blues. He knows more about music than I do, so I trusted that. Here's the piece:

http://rapidshare.com/files/421467596/
blues_file.mp3

Sorry about the quality of the sound, still workin at it. So was I right in thinking this is blues, or was my friend right, and it's Jazz? If he's right, then what is the proper difference between the two? Thanks!