The Drung of Zurgle

The Lab is a sentient, dimension-travelling recording studio. My last journey with it was to the swamp planet Zurgle, where all life feeds only on plant-filtered sunlight and sound. North of the planet are gigantic organic canyons. After three days vertical ballooning we reached the top and discovered the jaw-dropping, floating temple of the Drung, musical beings that have mastered the art of levitation by sound vibrations alone.