How to play "4" and "7" in Guzheng-Qin Sangqu?

#4 is slightly higher than the original sound 4 and b7 is slightly lower than the original sound 7. Just pay attention to the strength when pressing the string.

#4 is called L-4, which is slightly higher than the 4 note.

B7 is called drop 7, which is slightly lower than 7.

Simply put, it is #4, that is, when you press it, you should press harder than when you return to 4, and press the strings a little more. B7 is a little smaller than 7 when you press the string. To reflect the sad Shaanxi music style.

One more thing. Qu is a quzheng man in Shaanxi province, and his main feature is that there is a certain difference between "4" and "7" In Shaanxi Zheng music, there are two kinds of "4" and "7", one is "happy sound" and the other is "bitter sound" (also called "crying sound", which has the feeling of crying). "4" and "7" in "Yin Huan" have pure timbre and less vibrato. The "bitter sound" of 4 is slightly higher than that of 4, with vibrato; "7" is slightly lower than minus "7". In this piece, "7" is used in the introduction, while "4" and "7" are used more in Adagio.