First of all, what children like is important, and interest is the best teacher. Secondly, of these two instruments, I recommend guitar. After all, classical guitar is one of the three major musical instruments in the world, alongside violin and piano. Compared with drum set, guitar helps to cultivate children's sense of music in an all-round way, especially intonation. Nine-year-olds learn classical guitar. In addition, there are not many children studying classical guitar in China, and unlike other classical instruments, many classical guitar tracks are songs that combine classical music with modern music, such as Adeline by the Water. Children will be more interested.

The size of the guitar depends on the child's height and finger length. The average nine-year-old can use a 36-inch guitar. Martini is a good choice for beginners, and I don't know much about other brands of children's guitars. The timbre of the single-board piano will be significantly higher than that of the plywood piano, so if the family conditions are affluent, you can choose a single 36-inch guitar within 2000, and the cheaper one can choose the plywood piano, and the general price is around 1000. Even if the price is lower than that of 700 yuan, poor piano will cause all kinds of troublesome problems, which is not good for children's development. Moreover, it won't take long for children's guitars to be replaced by standard guitars, at most two or three years, so symphonic instruments are still acceptable.

Let the teacher choose the drum set. I won't say anything if I'm not sure.

Above, Ann, if you think what I said is reasonable, please choose me as the best answer. Thank you?