None of the things you've highlighted have ever, as a user, registered with me. What I want from a music app UI is a good search function, playlists, and then i

None of the things you've highlighted have ever, as a user, registered with me. What I want from a music app UI is a good search function, playlists, and then it's really down to content, content, content. For an app like that I just need the UX to be "good enough".