Umm what do you mean? There's already a media player widget in it, just hold the icon for the mediaplayer.
Song metadata only shows with the controls, so again, do that ^.
And no, it's not my code that's buggy (first screenshot), it's the browser
(If you string the browser's binary, it seems to be overriding the whole desktop which seems to quote: draw items in it faster).
So that's out of my hand.