Hi! Here we go!
It is important to point out, that Apple has done a good job with iTunes, therefore the redesign must make sense, we shall not reorganize the content randomly, thus, let’s start thinking about the “Now” instead of the “Change”.
We have got a clean and tidy interface, but do all this items make sense? if we have got a music player and a shop, does it make sense to have all the controllers on the top bar? The first thing we will do must be to put together and show the player controller on the bottom, just like a music player would do, the content appears on the body, and the secondary actions on the superior menu.
Regarding the color, it is key, because it improves the esthetic and works perfectly to highlight and organize the items, in this case, we have made a white interface, highlighting the most important items, in this case the music content.
We have added a lateral tab, that changes depending on where in the iTunes we are located, showing relevant content of each section, using a balanced visual weight, where the items are symmetrical, and have the same visual importance.
In the artist page , we start showing each image (Trying to make it as striking as possible)
To draw attention, next to the name and a short biography, next would be the latest albums available, and a song list, sorted by relevance.
It is important to point out that all artist pages are customizable, so that each artist has a different page adapted to his/her colors and visual style.
Nothing summarizes better than a set of images about design:
This are only previews to show the page live, to see it on best quality look on the images instead: