<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 used for in music theory? Context: The Circle of Fifths is a tool used to understand key signatures, chord progressions, and relationships between chords in music. Answer: [/INST]The Circle of Fifths is a tool used to understand key signatures, chord progressions, and relationships between chords in music.</s>