as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
compile a list of five rare string instruments.
user
1. tibetan singing bowls
2. hardanger fiddle
3. nyckelharpa
4. glasguitar
5. coupophone
assistant