I would love to be able to buy music right from the Music app. Why do I have to go to a separate app to purchase music? Apple could easily gray out music that's not available on Apple Music and if you tap on it you get a message that says the item is not available in Apple Music. Heck that's what happens now whenever I listen to something I purchased from iTunes that isn't available on Apple Music. So why does iTunes music and Apple Music have to be separate?