In "two kinds," why does the daughter mention her mother's dead daughters when her mother insists that she practice piano after the recital?

She wanted to hurt her mother because she is not happy with her mother forcing her to perform and she succeeds in her effort. Her mother wanted her to become a prodigy which lead and fueled her rebellious behavior towards her mother. "Two Kinds" is a short story written by Amy Tan and it was first published 1989.