The mechanism of gaining fast and slow music experience is to understand the speed change through the sense of body muscles, and to experience the speed change through the performance of percussion instruments and body blows. According to the related information, the sense of fast and slow speed not only affects the sense of rhythm and melody, but also affects the understanding of music performance. The speed of speed expresses different emotions and emotional states of human beings. The perception and expression of fast and slow speed are based on uniform speed. Before children feel the fast and slow music, they should experience the speed change in all music production activities, especially in singing activities.