How Racism Affected Marian Anderson's Vocal Billing

'Marian Anderson was billed as a contralto, the lowest possible female voice, even though she could also sing the high notes of a soprano. "I believed that Marian Anderson was not classified as a soprano is because that would mean that she would be the love interest of a white counterpart, which was not accepted at all at the time," said opera singer Denyce Graves.' -- American Masters PBS