And the fact that thats just another thing that mods would have to monitor.
This here. Look at it. Such a good reason.
Either way, as mentioned, it is far easier to play the music yourself through tabs or a mediaplayer than trying to implement a player onto the site without breaking someone's face or the law, whichever you find more important.
It would just be yet another thing to load. And load. And load. especially if it is found on every page of the site, and it resets when you are reloading a page, or go somewhere else.
So, the DIY version of this seems all fine, and we won't get complaints because Justin Bieber or a Rick Roll starts flowing out your speakers when you load AG.