I want to know the answer to the following question:
Free-form pieces like nocturnes and preludes were a break from what era?
All the background I'm provided with is that "Musical forms began to break from the Classical era forms (even as those were being codified), with free-form pieces like nocturnes, fantasias, and preludes being written where accepted ideas about the exposition and development of themes were ignored or minimized.". Is that enough to answer the question?
Answer: yes