In 1960, Panufnik visited the United States to visit Leopold Stokowski. Stokowski had given the American premiere of the Symphony of Peace in 1953, and in 1957 he conducted the world premiere of Panufnik's revised version of the symphony, entitled "Sinfonia Elegiaca", which is dedicated to all the victims of World War II. Stokowski gave American premieres also of Panufnik's "Katyń Epitaph", his "Universal Prayer" and "Sinfonia Sacra".
