The Collegium Musicum materials are housed in Boxes 11-12, with additional materials in oversize Box 43. Folders in Boxes 11-12 are arranged chronologically by performance. The materials include those performed at Yale University and in 1950 at Harvard University. Many of the scores from 1943 are holographs. Most of the scores after 1947 are in Paul Hindemith's hand, duplicated from holograph offset masters.