The guqin is one of China's oldest string instruments, traditionally played by scholars and literati as a tool for self-cultivation and quiet reflection rather than public performance. Its seven silk or steel strings are plucked and pressed to produce soft harmonics and sliding tones, a style that has been preserved in Chinese classical music for centuries. Today the sound appears widely in historical dramas, wuxia films, documentaries and as background music for online videos, where its restrained tone instantly signals ancient China, wisdom and tranquillity without needing words.