I'm not entirely sure specifically which 'ma black bottom' you are referring to. There could be many things with that name. It might be a local or niche story that requires more context to explain accurately.
Ma Rainey's Black Bottom' is rooted in the real - life Ma Rainey. She was a significant figure in the blues world. The story delves into the power dynamics in the recording studio. Ma Rainey had to fight for her rights as a black woman singer. For example, she often had to deal with white producers who tried to control her music and her image. Her story also reflects the vibrant and complex culture of the African - American community during the Jazz Age.