At the end of last November, Pittsburgh, on the initiative of Roy Harris, resident composer of the Pennsylvania College for Women, organized an ambitious First International Contemporary Music Festival. It was an attempt to give a survey of music written in the last quarter-century, and although lasting only one week, boldly challenged comparison with the American-sponsored Festival of Twentieth-century Masterpieces held in Paris throughout last May. It says much for all concerned that the Pittsburgh festival emerged from the comparison with much credit.