Why did the girl in the white umbrella say that her mom was a pianist?

In "The Girl in the White Umbrella," the girl claims her mother is a pianist to create an idealized image of her family and to escape the reality of their struggles. This statement reflects her desire for a more glamorous life and a deeper connection with her mother, who is often preoccupied with work and financial difficulties. The piano symbolizes not only talent and beauty but also the longing for a more fulfilling emotional life. Ultimately, it highlights the girl's innocent wish to see her mother in a light that contrasts their harsh circumstances.