Hello, I'm from the preschool education department of East China Normal University in Shanghai. Our professional piano lessons are divided into piano and accompaniment. Generally, in a class, the teacher teaches a scale, arpeggios and the corresponding harmony, then writes a tune, and then goes back to practice by himself. A week later, the teacher will come back to class and arrange new content. This usually lasts four to five semesters. 10 people, one teacher and one classroom. They usually play etudes by Bach, Bulger Miao Lei, etc. In the accompaniment class, the teacher teaches the methods of accompaniment, and then chooses 2 to 4 children's songs as homework. Then it is also a week to match and practice by yourself, and then go back to work. The quantity is the same. The songs generally chosen are ordinary children's songs.