You should be hearing a Sepultura song by the name of "Refuse Resist". Enjoy it or don't. It's a good song, whether you think so or not and it is playing without your asking it to because I set the autoplay flag. I did NOT set the controls flag, so you have no way of stopping it from playing other than turning down your volume or muting it. I would not suggest doing this with songs, in general. Most people find it to be annoying, especially if they don't like the particular song. I also put a few other songs on this page that don't autoplay and do have controls so once this one's over, feel free to jam out for a little bit. If you are looking at my source, you will see a preload option set on the audio tag for South of Heaven. Some mp3's are encoded so that they stream well while others are not. If an mp3 isn't encoded in a linear fashion, it just sits there and doesn't play. Another reason to preload is if you think bandwidth might be an issue. If the song might have to stop to buffer, preloading it may be a good idea. On the other hand, if on a metered connection it'll download the song automatically whether the user wants to listen to it or not using megabytes of somebody's data plan.