1. Different styles

Blues: It is a kind of vocal and instrumental music based on the pentatonic scale. Blues originated from the soul music, hymns, labor songs, shouts and hymns of African American slaves in the past. The "blues sound" used in blues and the singing style of Qi Ying both show its Western origin.

Rhythm and blues: also known as rhythm and blues. It is a musical form first played by African-American artists and that incorporates jazz, gospel, and electronic blues. This musical term was coined by Billboard in the late 1940s.

2. Different characteristics

Blues: This kind of music has an obvious special style, which is to use the "one call and one response" form similar to Chinese folk songs. The musical phrase will initially give people a feeling of tension, crying, and helplessness, and then the subsequent musical phrase will seem to comfort and relieve the suffering person. Therefore, blues music places great emphasis on the catharsis of self-emotions and originality or improvisation.

Rhythm and blues: not only absorbs the swing rhythm and horn-based arrangement method in jazz, but also absorbs the reply sections and harmonic structures commonly used in blues. On "Jump Blues," the singer's voice is harsher, the tempo is faster, and the instruments are played differently—the piano is played harder and the saxophone sound is longer and sharper.

3. Different origins

Blues: The earliest recordings of blues and country music were made in the 1920s, when the popular music industry that was starting to research and produce "African-American music" ” and “traditional music” market types to attract black or white customers accordingly. Today's blues, like today's country music, began in the American South in the 19th century.

Rhythm and Blues: A musical form performed by African-American artists that combines jazz, gospel, and electric blues. This musical term was coined by Billboard magazine in the late 1940s. Many of the early "jump blues" performers came from Los Angeles, where a large black community formed during the Great Depression and World War II.

Baidu Encyclopedia-Blues

Baidu Encyclopedia-Rhythm and Blues