There is in theory. Among the 88 keys, the range width ranges from A2 of the second group of large characters to C5 of the fifth group of small characters. According to the balance law of 12, the sound produced by any two adjacent music is chromatic, and the ratio of their vibration frequencies is a constant Q. Let the lowest frequency A2 be a, then the rising frequency A2 be aQ, and so on. In addition, every octave, the rising frequency is twice the original frequency, including 12 semitones, so the thirteenth tone is twice that of A2. Therefore, the length ratio of two adjacent strings is constant q = 1. But after all this nonsense, I still want to say that it has nothing to do with it!