Why did still favor the blues over spirituals as source material for his compositions?

Still favor the blues because he felt that it did not exhibit Caucasian influence. William Grant Still was an American composer that was an advocate for African American musicians. Actually, his most widely known composition was his first symphony, which he named the "Afro-American".

Still, favor the blues over spirituals as source material for his compositions because he had a feeling that they did not exhibit the Caucasian needed influence

Explanation:

Still decided to look for Harlem artists because of inspiration; however, he did not even receive any recognition for his works until his death. Still was yet known for his books that he had composed. His different compositions formed the basic in black popular music. Due to this, he remains a figure of African heritage music industry that dominated in American concerts. After his death, he remains legendary in his genre.