ヘンリー・カウエル
Bartok, Peter, Moses Asch, Marian Distler, and Sidney Cowell; revised by Sorrel Hays (1993 [1963]). Liner notes to Henry Cowell: Piano Music (Smithsonian Folkways 40801).
Boziwick, George (2000). "Henry Cowell at the New York Public Library: A Whole World Of Music," Notes [Music Library Association], 57.1 (available online).
Cage, John (1959). "History of Experimental Music in the United States" (available online), in Silence (1971 [1961]), pp. 67–75. Middletown, Conn.: Wesleyan University Press. ISBN 0-8195-6028-6
Cowell, Henry (1993 [1963]). "Henry Cowell's Comments: The composer describes each of the selections in the order in which they appear." Track 20 of Henry Cowell: Piano Music (Smithsonian Folkways 40801).