A different piece of music by Mozart?

These two composers belong to two different periods of the music history: Bach lived in the end of the Baroque, while Mozart lived in the Clic period. Although, Bach is a composer that makes the transition from the Baroque to the Clic. If you listen to some of the last Mozart compositions, they start having some elements of the Romantic period (that follows the Clic). Then, I would advise you to choose one of the pieces Mozart composed during his last years, such as the Requiem and the opera The Magic Flute.