The tuning of the guzheng is generally accomplished by pressing the strings with the left hand, changing the fingering with the right hand, and moving individual zither codes during performance. The modulation of the guzheng is different from the fixation and transposition. Tuning refers to the specified pitch height when tuning;
Transposing refers to appropriately moving the guzheng code or changing the tension of the string as needed during performance to move the original pitch higher or higher. Low; modulation refers to switching from the original key to another key during the musical progression of guzheng music.
The modulation of the guzheng is generally accomplished by pressing the strings with the left hand, changing the fingering with the right hand, and moving individual guzheng codes during performance. For example: the original key of the guzheng is D, and it can be transferred to the following three keys: the subordinate G key; the subordinate A key; and the C key. It is more convenient to switch to these three keys, but to switch to other keys, because the left hand presses more notes and the right hand fingering is more complicated, it is difficult to play the melody, which limits the performance of the music.
On the pentatonic-tuned guzheng, there are corresponding relative modulations. For example, the key of A can be converted into the key of D, E and G; the key of C can be converted into the key of F, G and bB; the key of bE can be converted into the key of bA, bB and bD, etc., and so on. With the emergence of modulated guzheng, it provides convenient conditions for the modulation of guzheng music. Most of these modulated zithers are modulated by changing the string length or changing the string tension to change the pitch. The modulated notes are still based on the pentatonic scale. Of course, this refers to the guzheng that is tuned in the pentatonic scale. It is another case for the guzheng that is tuned in the heptatonic or twelve-tone scale.