Assertion: rock's music | /r/Synonym | blue
Facets:
Source sentences:
text: Rock and roll developed in the early 1950s from a kind of music called rhythm and blues performed by black singers and musicians.
text: Rhythm and Blues developed from the music called the Blues.
text: Rock and roll developed in the early 1950s from a kind of music called rhythm and blues performed by black singers and musicians.
text: Rock and roll developed in the early 1950s from a kind of music called rhythm and blues performed by black singers and musicians.