Hm.
Setting aside the font, which shouldn't really be much of an issue here, the tutorial was pretty good. I suppose it would be helpful for noobs and such.
However, the title of your submission, though appropriate, should've specified what kind of tutorial you're giving out. Little nooblets searching for 'tutorials' would be given a lot of results and the chances of them finding yours would be slim. So for the sake of access, maybe you should change the tutorial name.
Otherwise, I like it, it's neat. You should be able to stop the previous music playing when you click a different music button, but it isn't much of a hindrance, so that's okay. =)