Introduction

In the shenandoah valley of virginia, in the blue ridge mountains, there is a network of dark, cold caves called leray caverns. A path leads down into the cave, and it takes you past dream lake, a big pool with this calm, reflective surface. All around it there are a ton of stylagtites hanging down from the ceiling and stalagmites reaching up from the ground. But wander a little further into the cave and your jaw might drop a little more, because there in the middle of the cave is an enormous organ. Instead of pipes, every key of this organ is connected to a tiny mallet that hits a different stalact