How does Jing-mei mother get the idea that her daughter should play piano?

In the story "Two Kinds," Jing-mei's mother is inspired to enroll Jing-mei in piano lessons after reading about the famous Chinese pianist Juilliard Ju. While Juilliard Ju was a boy rather than a girl, Jing-mei's mother is determined that her daughter should excel at the piano, believing it will bring honor and recognition to the family.