I think it would be convenient to have the Volume control available not only on the “Playback” screen, but on every screen of the User Interface. For example, when I start playing a track from within the “Browse” dialogue, and recognize it is too loud, I’d like to adjust the volume immediately, without leaving the page.
Two additional buttons like “>” and “<” or the big and the small speaker symbol besides the “Play/Pause/Forward/Backward” control would be a nice solution.
Cheers,
-Uli