<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 circle of fifths in music theory ? Context: The circle of fifths is a useful tool in music theory to understand the relationships between different keys and key signatures. Answer: [/INST]The circle of fifths is a tool used to show the relationships between the 12 tones of the chromatic scale, their corresponding key signatures, and the relationships between major and minor keys.</s>