Last night l went to a concert of Chinese folk music. One piece especially moved me. It (play) on the erhu. I felt sad and painful. The piece (name) Erquan Yingyue was one of (moving) pieces of music that I've ever heard. The erhu sounded sad that I almost cried along with it when I listened. Folk musician Abing (write) the music. He was born in Wuxi, August 17, 1893. He could play many musical instruments with his father's help. By age 17, he was known for (he) musical skills. Today, Abing's Erquan Yingyue is great piece. Many greatest erhu masters play praise it. It has become one of China's national (treasure).