Intonation is one of the most important technical difficulties in learning the erhu, and it is also the premise of playing the erhu well. When the erhu is set to the standard pitch DA, then the standard pitch is played.
Since there is no fixed pitch for the erhu handle, it will undoubtedly bring difficulties to the player in playing. This is entirely dependent on hearing and the accuracy of the pitch of the left finger when pressing the string to identify the pitch.
I think intonation is innate, if a person has good intonation, it shows that he has the talent to learn erhu, and learning erhu will be easier.
Interest, only when you are interested in one thing, will you be willing to do it well from your heart.
Talent and interest are inseparable. If you learn Erhu, if you have both, you won't be afraid of bad learning.
To sum up, playing erhu requires a high ability to identify pitch. If there is a slight deviation, the beauty of the whole piece will be destroyed. For example, when playing a tune and accompaniment, the sound of the erhu should be in harmony with the accompaniment.
Therefore, in the process of learning erhu, the importance of intonation cannot be ignored.