Some additional comments…
When you click on an album, you get the list of songs displayed below. I understand the strive for simplicity, but… If you click on an album at the bottom of the screen (at least on a tablet) the list is not visible, so you actually have to scroll down to access the song. One could even completely miss the fact that the list is there. If you want to persist with that method perhaps the list should at least be centered on the screen, or you should make sure it is visible.
Also, with this method, no metadata is displayed, and it is really not obvious how you can access it. What was the intended way of getting the Metadata/Tagging information displayed?
Hope these types of comments help.