<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context to answer the question. If you don't know the answer, just say that you don't know. Use three sentences maximum and keep the answer concise. Question:  What is the key signature for a piece written in the key of C major? Context: The key signature for a piece written in the key of C major has no sharps or flats. Answer: [/INST]No sharps or flats.</s>