Billie Holiday was one of the greatest jazz singers in America. Her life was just a mixture of success and tragedy  . Her singing expressed her experiences and feelings. Billie Holiday's parents Sadie Fagan and Clarence Holiday were young when their daughter was born. Their marriage failed because Clarence Holiday was often out. He traveled as a musician with some of the earliest jazz bands and inspired his daughter. Sadie cleaned people's houses to make a living. Later she moved to New York City where the pay was higher, for which she had to send her daughter to one of her  s.       The young girl changed her name to Billie, because she liked a movie star, Billie Dove. The talented Billie Holiday loved singing. She sang and listened to music whenever she could. In one place near her home there was a machine that played records. The building was a theater where many famous singers also performed their newly-made songs for free. Billie cleaned floors and did other jobs for the theater so that she could listen to the records. It was there that young Billie first heard the records of some famous black American blues artists of the 1920s. She heard Bessie Smith sing the blues. And she heard Louis Armstrong play the horn. Both musicians had a great influence on her.      Billie Holiday once said, "I do not think I'm just singing. I feel like I am singing the song from my heart. What comes out is what I feel." According to the passage, Billie Holiday's success mainly lies in  _  .
her childhood experience her work in the theatre her feeling and love in her songs her learning from the others