The erhu—a Chinese two-stringed bowed musical instrument—is a prominent spike fiddle recognized for its role in both solo and ensemble performances. Emerging from ancient Chinese instruments like the xiqin, it gained popularity during the Tang dynasty. With a resonator body covered by python skin and two strings, the erhu's characteristic sound derives from bowing the skin. Its unique design, including the absence of a fingerboard and bow hair passing between the strings, contributes to its distinctive tone. The erhu is a central component of regional ensembles, Chinese opera, and modern large orchestras, and it has also found its way into contemporary genres like rock and jazz.