A friend of mine is a dulcimer.

Personally, I think pipa is the most difficult to learn. PS: You don't need finger length, all strings will have cocoons. But pipa is the most expressive and narrative in folk music, and many famous songs are of this type, such as House of Flying Daggers.

Guqin has a profound charm, as the saying goes: the kind that produces a sound in half an hour. To some extent, it is similar to the playing method of guzheng. The hardness of the strings is indeed the hardest of these strings, so be prepared for a sore hand. Even if you learn pipa with the softest strings, your fingers will be worn out.

The introduction of guzheng is very simple (I can play Band 4 directly in two or three months' weekend), but the advanced level still needs hard practice. Guzheng has the most beautiful sound, but it lacks 4 and 7 like guqin.

Dulcimer can't play, but it is similar to electronic organ to some extent, because it doesn't need too many fingering as other types of national strings.

Xiao directly turned into a wind music with a deep voice. Girl, do you really want to learn from Xiao?

Finally, I personally appreciate the guzheng, which has a nice voice, simple entry, soft movements and rich harmony, and is suitable for girls to learn.

The sixth grade is still very young. Why is it late?