This paper is an explanation of the music of nine ceremonies of the Sioux Indians that are recorded on tape in the Library of Congress. The purpose and description of the ceremonies are given here, as well as an explanation of who is singing the songs, and when they were recorded. Some of the songs included are for the Sun Dance, Braves Dance, Cutting of the Pole for the Sun Dance, and the Opening Prayer of the Sun Dance. There are several other documents about the American Indian in this series. They are: SO 005 548, SO 005 549, and SO 005 545. (OPH)