Erhu strings has a large impact on the tone and playability of your erhu. Different type of strings make your erhu sound clearer, louder and brighter.
The varying thickness of different types of strings also affects the tension on the strings which in turn affects the touch of your left hand fingers. As dirt and grime build up on your strings over time, the tone of your erhu will become duller.
Experts recommend that you change your erhu strings once every 6 months to keep the tone in tip top condition.