Buttons from top to bottom: Add song Play specific song Mute Shuffle full playlist Previous song (shuffle mode only) Restart current song (shuffle mode only) Next song (shuffle mode only) How to add songs: 1. Make a remix and name it what the playlist will be 2. Upload a song into the sound tab of the backdrop 3. Click the add song button and input the song name and artist 4. Repeat steps 2 and 3 for every song you wish to add!