An old movie is about a guitarist who used the melody of an electric guitar to drive away a locust plague in a small town in the United States.

Call. American movies. 1998 was broadcast on Zhejiang Satellite TV. This film is very good. It tells the story of a wandering guitarist wandering around carrying his electric guitar. When he passed a village, he happened to meet a plague of locusts in the town. He told the mayor that there was a way to drive away locusts. He used his electric guitar and others laughed at him. But later, he couldn't help it. He still drove away with his electric guitar and the mini speaker on his back.