This paper introduces Introduction to Music, an artist who is "most like modern artists in China"-Feng Zikai, as a gift for every lover. When we talk about the expression of sound in Introduction to Music, we first analyze the psychological process of two stages of music appreciation, which leads us to experience and taste, and then point out that music is a language that can tell people various meanings. After reading this, I think of the grandeur of the music in the Forbidden City. To learn music, you must know this language. The way those players swayed with the music they played, the audience looked very emotional, just infected by the expression of the sound. The difference between vocal music and instrumental music is mentioned many times in Introduction to Music, and it is pointed out that it can only be completed by learning instrumental music. March and dance music are recent instrumental music. Therefore, after introducing vocal music, Feng Zikai repeatedly emphasized the appreciation of March and dance music. Pointed out a correct path for music lovers. The learning path and some points and skills that need to be paid attention to are introduced in detail later. Firstly, the voice learning method based on vocal music and instrumental music is explained. Music is the expression of people's feelings. However, due to the limited vocal cords and vocal range, people need musical instruments to express their feelings directly, so vocal music is the best way to get started, while instrumental music is noumenon because instrumental music is sung silently in the heart, not published on the body. Singing is not pure music, but a combination of music and literature, while instrumental music only expresses the beauty of music through sound level, so it is noumenon. Practicing music needs a correct attitude, including singing and vocalization, and it needs to be strengthened from vowels until every sound can be pronounced correctly, while instrumental music needs a correct attitude, fingering, posture, finger bending, foot position, head direction and so on.