Before I started using the music streaming services, I used Google Play Music to listen to the songs that I downloaded from third-party. So, I redesigned the Google Play Music app to focus on the simple function of listening to songs offline.
Long-pressing a song allows multiple songs to be selected to add at one to the playlist
Previously text-based list of playlists now has cover arts and are organized under tab menu.
Previously there is no option to add songs directly from the playlist page.