 The natives actually sat down and mapped things. They showed them just on the ground, here's the way you want to go. So that's pretty crucial information. And the fact that they were able to listen to music together around the campfire at night, and then Indians would dance, and the members of the expedition would play a fiddle and dance. I think music was tremendously important to the feeling of conviviality that they had when they were camped with these natives.