Question

What was R&B originally called?

Answer 1

It's short for "rhythm and blues", if that was what you were looking for.

Answer 2

Rhythm and Blues (R&B) was originally called by various names such as Race Music, Sepia Music, and Harlem Music.

Step-by-step explanation:

Rhythm and Blues (R&B) was originally called by various names such as Race Music, Sepia Music, and Harlem Music. These terms were used to describe the music created by Black artists for Black audiences in the 1940s. The genre blended uptempo blues, jazz, and country music, and it laid the foundation for the birth of rock and roll. As R&B evolved and gained popularity, it eventually became known as R&B.