How does what Jing-Mei learn in her piano lessons compare to what her mother expected of her?

When Jing-Mei's mother enrolled her in daily piano lessons, she expected her to be even better than the little girl on television. Jing-Mei resented her mother's expectations for her, and she learned to get away with playing sloppily. Because her piano teacher, Old Chang, was deaf, she could play wrong notes without his noticing. When Jing-mei heard her mother bragging to Lindo Jong about how talented she was, she decided to humiliate her mother.