Panda Bear & Sonic Boom - Danger (Official Video) LP grows after listening, they might seem like simple pompous songs, and they are (partly) but behind them there is a great deal of synth work, looped backing vocals (Sonic Boom's hands) fluttering like butterflies over the tracks, creating a colorful backdrop for the pieces. All that's left is to surrender Panda Bear & Sonic Boom - Edge Of The Edge (Official Video)