“Jazz, often called America's classical music, so influenced our culture that Americans named a decade after it. Like the country of its birth, jazz blends many traditions, such as African-American folk, rhythm and blues, French Creole classical form, and gospel. Through the creation and performance of music like jazz, black Americans were better able to exchange ideas freely across racial and cultural barriers. Before our Nation made significant strides in truly promoting equal justice and opportunity for all, black and white musicians in the genres of jazz, blues, and country played together in jam sessions, recording studios, and small bands. In many ways, their art preceded social change, allowing black and white musicians to meet as equals and to be judged on their musical ability, rather than the color of their skin. Their music also provided an outlet for African Americans to speak passionately and brilliantly to the rest of the Nation and the world.”

Heifetz official web site http://www.jaschaheifetz.com/about/quotes.html

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The Composer in the Machine Age (1933)

"The Relation of Jazz to American Music", in Henry Cowell (ed.) American Composers on American Music (1933); reprinted in Gregory R. Suriano (ed.) Gershwin in His Time (New York: Gramercy, 1998) p. 97.

2000s, 2001, Black Music (June 2001)

On not tossing certain facets of African American culture as relics in “AN INTERVIEW WITH AMERICAN PLAYWRIGHT AUGUST WILSON” https://kuscholarworks.ku.edu/bitstream/handle/1808/25048/Tibbetts_AugustWIlson_2002.pdf?sequence=4&isAllowed=y (John C. Tibbetts, 2002)

Un certain sourire (1955, A Certain Smile, translated 1956)

NPR interview (2005)

2000s, 2001, Black Music (June 2001)