The erhu class at Binzhou University for the Aged is good. Binzhou University for the Aged has a beautiful environment, a large green area and a strong learning atmosphere. Besides, teachers teach erhu in simple terms, which is very suitable for the elderly to learn and easy to understand. The erhu class is also good. Erhu began in the Tang Dynasty and is called "Xiqin". With a history of 1000 years, it is a traditional stringed instrument in China.