Complex sentence: The next day, in another part of the city, a woman is watching her daughter practice Chopin's Prelude in A major on the piano, which is interrupted when two police officers show up to inform the mother that they've received yet another noise complaint.
Split into simpler sentences: The next day, in another part of the city, we see a woman listening to her daughter practice Chopin's Prelude in A major on the piano. The moment is interrupted when two police officers show up and inform the mother that they've received yet another noise complaint.