"The stop, previous and next track buttons are shown on the left."
Shouldn't that be something like: "Buttons for the previous and next track are shown on either side of the title" (Is there a stop button other that pause?)
Also, I think that the undocking of the toolbar requires a few words - perhaps something like this:
To undock the Toolbar you should first make sure that themenu item is unselected. Now you can grab the toolbar at its left edge and drag it anywhere. To get it back just drag it into its old position while the layout is still unlocked.