"The position of African Americans in both [Stein's] Brewsie and Willie and American wartime radio reinforces the importance of attending to the form of expressive programs. As content, African American culture and questions of race were not considered outside the purview of radio. A large part of radio's success could be attributed to its popular jazz programming."
Sarah Wilson. "Gertrude Stein and the Radio," Modernism/Modernity, Volume 11, Number 2, April 2004, page 272.