Cai Feng Lullaby

He is a professor at the Conservatory of Music. Every year he takes his students to the countryside to collect folk songs and record old people's folk songs. There was an old sheepherder who sang all his life and no one ever remembered him. He recorded for three days, and the old man suddenly said: "Stop recording, I can't sing anymore." He handed the recording pen to the old man, and the old man sang a song he had never sung into it. When he came back to sort it out, he found that there was a melody hidden in the last song, which was very similar to the lullaby his mother had hummed. He searched for three months and found that the old man was actually his grandfather who had been separated for fifty years. That year he went to collect songs again, but the old man was no longer there, the sheep were still there, the mountain breeze was still there, and the song recognized him.