Make changes and add some features to music player

[login to view URL] tracks to be selected, while Creating a playlist are to be sorted in alphabetical order. [login to view URL] any song and hit return key once or twice to run the player on background and then resume the app by hitting on ongoing task button. the track restarts. I don't want the track to restart. 3.A new slider menu (menu slides from left when touched at top-left menu button)in place of top-left return key. which will have menu items as Music Library, Now Playing 4. Add buttons prev play/pause, next button to notification widget. Which appears when the player is minimized or running in background 5. A home screen 4x2 , 4x1 Widget to be made with play/pause, prev., next, shuffle, loop and track details 6. Add "ADD SONGS" option in the drop down of playlist to add more songs to existing playlist