According to Plato, musical training is a more potent instrument than any other for education. The formal study of early childhood music in the United States probably began on the University of Iowa campus in the 1920’s and 1920’s with the Iowa Child Welfare Research Station Preschool Laboratory. They published research on rhythmic and vocal behaviors of 3-5 year olds. (Harris, Maureen. Music and the Young Mind. p vii, xi. NY: MENC with Rowman & Littlefield Education, 2009.)