Even in the same position of the same key, the finger shapes of the inner and outer strings of the erhu are not necessarily the same, such as the first position of G major, the first position of F major, etc.

The finger shape of the inner and outer strings in the first position of G major

The picture above shows the first position in the key of G major.

The finger shape of the outer string is "122"

The finger shape of the inner string is "212"

Note: On the basis of distinguishing the sound of the inner and outer strings, you can practice on the same row of holes so as to be consistent with the actual sound. You can keep your index finger on the hole in the second row during practice.

The finger shape of the inner and outer strings in the first position of F major

The picture above shows the first position in the key of F major. In addition to the different frame of the hand, the finger shape of the inner and outer strings is also different. At this time "

"4" and "4" both use the index finger to press the finger, among which the finger distance from the first finger to the fourth finger of the outer string is an increased fourth, and the "4" sound of the outer string is pressed by the index finger backward (the index finger is stretched up by a small second degree). ). For common cases of the conversion of a perfect fourth and an augmented fourth, please refer to the page "Conversion of a Perfect Fourth and an Augmented Fourth". The finger shapes of the inner and outer strings are:

The finger shape of the outer string is "222" (increased fourth)

The finger shape of the inner string is "122" (a perfect fourth)

When practicing, the left hand shape should be kept stable, mainly the stability of the left wrist and the tiger's mouth. The tiger's mouth should be in the first position, and the fingers should be kept as relaxed as possible. You can focus on practicing the index finger on the inner and outer strings.

Note: On the basis of distinguishing the sound of the inner and outer strings, you can practice on the same row of holes so as to be consistent with the actual sound.