Hi there
There has been a calculation puzzled me for quite a long time. In spectral music, the distortion method can be used for stretching or compressing harmonic series by change one or two partials’ frequency. After increased or decreased the partials frequency, the whole harmonic series will be arranged by the new proportion(this mentioned by Tristan Murail in his article). I would really like to know how comes the new proportion? I will appreciate anyone who can give me the explanation in detail. Thanks for the reading.