- Expose five pinned pivot in music library which are all tracks, all
albums, all artists, all playlists, and most recently added. There are
more auto preset using usage pattern under more auto-search.
- open issue: has to decide an appropriate terminology for other pivot
-own by stacy lewis
- Expose two filters -albums and artist
- open issue: where is group by? I assume that group by is with view
by, so that user click the icon of view by, users can see both of them.
- Let user navigate into get songs. double click to open an album