What is the name of the song played when the little girl hides under the bed after the children choir sing oyfn pripetchik and before bach piano thanks?

The song played when the little girl hides under the bed after the children's choir sings "Oyfn Pripetchik" is "Bach's Prelude in C Major," specifically from his "Well-Tempered Clavier." This piece serves as an emotional transition, enhancing the tension and atmosphere of the scene.