Personally, I think it is better for girls to learn stringed instruments. Guitar is good, guzheng pipa is also good, especially to cultivate children's sense of music and temperament, and if you don't want to take this as a career, this age is just right. Girls can learn strings by referring to fibers, which can give full play to their advantages and cultivate flexibility and coordination.

Just learn folk music, even erhu is suitable for girls. But I don't think girls should learn wind music, because ... it's easy to make their breasts big and strong and ugly (and they have a good appetite after playing the flute). Of course, there are also some female flute players who are in good shape and cannot be generalized.

Your daughter is good at learning guitar, but I think it's best to learn classical guitar, because classical guitar requires high skills and can cultivate a sense of music. It is the most difficult guitar. Small size, wide range, elegant and noble timbre, ethereal and humble, its greatest advantage is to shape students' elegant temperament.

Finally, if the money is not considered, if the daughter really has a musical hobby to develop, the piano is undoubtedly the best. Playing the piano is the best way to learn music, whether it is music theory or music sense. I studied piano when I was a child. Later, it made sense to learn flute and other musical instruments, because music theory is no longer a problem.