Acoustic music is a kind of vocal etude without words accompanied by piano. Usually, it is sung with a vowel or a sound name (do re mi fa sol Ras) or seven syllables (da me ni po tu la be) in turn. Practicing music includes all kinds of skills such as scales, intervals, vibrato, skipping, syncopation, arpeggio, triplet, decorative sound, phrases, air ports and so on. Popular in the19th century, many teachers use it as a technical preparation textbook for students before singing opera. In vocal music teaching, how to train students' voices systematically and what kind of purpose to achieve is a fundamental problem. It is very important for teachers to choose suitable vocal music works for students. For example, for beginners, lip vibrato practice is selected when establishing singing breath, and humming practice is selected when training students to sing. For another example, what exercises should the students in the middle range choose to lay a good foundation, and what exercises should they choose for the training in the high range; When training articulation, what exercises and tracks to choose should have a clear purpose. Therefore, in order to achieve the expected results, it is very important to choose vocal music scientifically and reasonably. Common vocal exercises are: J.Concone's 50 Vocal Exercises, Vaccai's Practical Vocal Exercises, Abt's Vocal Exercises, Sibbel's 36 Elementary Vocal Exercises and H. Novka's 24 Vocal Exercises. These vocal exercises are important and systematic teaching materials for professional vocal music teaching. Abbott's vocal etude is a classic textbook recognized by the international vocal music community. The book is divided into four parts, the first part is vocal music and interval practice, the second part is the practice of cultivating fluency skills, and the third part is 20 fixed roll-call exercises. The textbook starts with the most basic vocal music practice, practices various singing skills step by step through reasonable teaching arrangements, and finally enters the more difficult fourth part. 10. "50 Vocal Exercises with Holes and Holes" is simple in style and broad in melody, which plays an important role in stabilizing voice, correctly dividing sentences and breathing, and cultivating good singing style. Vakai's Practical Vocal Exercise, Sibbel's 36 Elementary Vocal Exercises and Novka's 24 Vocal Exercises all have the same effect, which is especially suitable for primary vocal training. Except Wakai practical vocal etudes, these vocal training materials can be sung by roll call or vowels. When singing by roll call, each note should be pronounced according to the corresponding Italian (do, re, mi, fa, sol, la, si), and the trailing vowels (a, e, I, o) must be pure and clear, and the pronunciation should be even and pure. When singing with vowels, it is sung with the open Italian vowel A. In the 20th century, composers created it as a concert art work. There are famous vocal etudes by G Foley, vocal exercises by lavelle in the form of Avoinet, vocal exercises by Rachmaninov and three soprano clarinets by Vaughan Williams. The most difficult skills are Mesner's sonatas and practice suites.