Vocal music refers to the musical form of singing with human voice. The main teaching of vocal music: bel canto, folk singing and popular singing.
Vocal music is a pleasant, continuous and rhythmic sound based on human vocal cords and acting on breathing through mouth, tongue and nasal cavity. According to the range and timbre, it can be divided into soprano, mezzo-soprano, contralto and tenor, baritone and bass. The range of each human voice is about two octaves.