What is the origin of qin music? What system of written notation is used for the qin? What about this notational system encouraged individual interpretation

What will be an ideal response?

• "For much of its extensive history the instrument was associated with the elite scholar-officials who governed the Chinese empire." The qin was played by many highly cultivated amateur musicians either alone for self-cultivation or among a small group of like-minded friends (literati). Poetry and Chinese calligraphy were combined into qin songs. "Many qin pieces, like paintings, treated historical or programmatic scenes."
• Music notation for the qin was written in a score called jianzipu, which consists of a series of symbols that give performance details –which string to pluck, where to stop the string, what ornamentation, if any, to add, etc.
• The omission of rhythmic detail allowed the qin musician room for personal interpretation and creative flexibility.