"Schindler's List" is a very famous classical music piece composed by John Williams. The theme of this music is widely used to express emotions of sadness, pain, and hope.

When the same musical theme is played with different instruments, it can express different emotions. For example, using a violin to play a theme can express more delicate and softer emotions, while using a cello to play a theme can express deeper, sadder emotions. In addition, using different instruments to play the same theme can express different atmospheres and emotions.

In "Schindler's List," Williams used a variety of instruments to perform the theme, including violin, cello, piano, and organ. The music played by each instrument has different emotions. For example, the music played by the violin has a soft and delicate feeling, while the music played by the cello has a heavy sense of sadness.

In short, the same musical theme using different instruments can express different emotions and atmospheres. This method of expression is well reflected in "Schindler's List".