The collection consists of music manuscript scores, music notebooks and lecture notebooks by former Northwestern University School of Music professor Albert Noelte. A few accompanying papers documenting either Noelte's career, background or tenure at Northwestern are also included.

Manuscripts, diazotypes, published scores, and photocopies of the compositions of the American composer Arne Oldberg (1874-1962).

Manuscript scores (diazotype) by the American composer Alan Stout (born 1932), most with cover labels and stamps from the American Composers Alliance Library, New York.