The accuracy of erhu tuning has a lot to do with the performance of the erhu. The erhu adopts fifth tuning, and generally uses overtones for tuning. "D, A tuning" is the standard tuning of the erhu.

Whether the sound of the erhu is set accurately or whether the height is suitable will directly affect the smooth progress of the pulling effect. The so-called tuning is to use the piano shaft device to fix the pitch of the inner and outer strings respectively. The erhu is generally tuned in fifths.

Many musical instruments generally use overtones to tune the strings, and the erhu is no exception. Using overtones to correct the fifth pitch of the erhu can not only ensure the accuracy of the fifth pitch, but also improve our sound recognition ability.

According to the performance characteristics of the erhu itself, in order to maximize the resonance of the erhu, generally speaking, the pitch of the inner string can be grasped at any height between the absolute pitch "g-d'", and the pitch of the outer string is also It is correspondingly set between "d' and a'". That is, the inner string is designated as "g", the outer string is designated as "d'", the inner string is designated as "A", the outer string is designated as "e'" and so on. The pitch height of this range does not lose the rich, round, clear and bright pronunciation characteristic of Erhu.

If it is singing with accompaniment, in addition to considering how to maintain the pronunciation characteristics of the erhu, it is also necessary to consider the vocal performance suitable for the singer. For example, to accompany the bass, the pitch of the erhu should be one octave higher than that of the bass. For the "key signature" in the song (i.e. "1-C", "1.'E", etc.). We only use it as a reference for tuning. Each singer's voice is different. If you use an erhu accompaniment, you should ask the singer to sing first, so as to master the vocal range of the singer. Generally speaking, using the lowest note of the singer to tune the inner strings of the erhu is the most conducive to the full exertion of the singer's vocal performance.

If you are on stage for solo performance, unison performance or participating in an ensemble band, the tuning of the erhu must adopt the unified "D, A tuning". People often regard "D, A tuning" as the standard tuning of the erhu.