Answer:
here's the math hope it helps
Early rock grew mainly out of rhythm and blues dance music of African Americans that fused blues, jazz, and gospel styles.
Early rock songs grew in particular out of Rhythm & Blues, an African American dance tune that fuses... blues, jazz, and gospel styles. Rhythm & Blue of the 1950s varies from the earlier blues in its... more effective beat, and its use of saxophone, and electric guitar.
The term "rhythm and blues," often referred to as "R&B," originated in the 1940s whilst it replaced "race music" as a standard advertising and marketing term for all African American songs, although it normally referred to handiest to secular, now not religious track.
Delta blues is one of the earliest-recognized styles of blues. It originated in the Mississippi Delta and is regarded as a regional variation of us of blues. Guitar and harmonica are its dominant instruments; slide guitar is a hallmark of the style.
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False the troubadours were not essential.
