I think you did a good job showing what the style would look like in other apps, but I'm not a fan of the style itself. Your mockups make it even more clear. It's good for subway signs and Ikea manuals but I don't like it on my phone. It wastes a lot of screen real estate and feels like it's shouting at me all the time.
On top of that, it hides functionality in confusing ways, not consistent with the rest of the OS paradigm. Even just sorting songs by artist instead of by album is harderto do than bedore.
Within the whole OS, it stands out like a sore thumb, or like an old skeuomorphic app in iOS 7. I wonder if Jimmy and Dre insisted their own designers should determine the look & feel of their app. It doesn't feel like a Jony Ive job.