I know, you might say - so if the hub page had verticall scrolling - why isn't this page sticking to the same principle - and this is a very good question.
To me, doing this page this way just felt like the right decision as it has different types of content (artist biography, a list of tracks, a list of followers, list of people the artist follows and a list of similart tracks) and putting everything into one big vertical sheet did not seem the right thing to do.
I think, Windows 8 were not publically released at that time when I was working on this project, therefore, you could not find a lot of material internet in regards to UI/UX best practices for Windows 8 apps. If you have any comments - feel free to share!