Archive of posts in category “music”

Jun 22, 2025
The buildup kickroll in Time to beat the odds
There is a gradually-accelerating buildup kickroll at 1:18 in the song Time to beat the odds by 影虎。. In order to know the details of this rhythm, I have to analyze the sample using Python. The main method is to do a short-time Fourier transform and to find the peaks in the high-frequency region of the spectrogram. A linear regression shows that the time intervals decay geometrically.
/music #fourier transform #python
Mar 27, 2020
The frequency assignment of musical notes
This article explores the concept which I call the frequency assignment, which is a mapping from $N$ (the set of notes) to $\mathbb R^+$ (the set of frequencies). Concepts such as octaves, intervals, and equal temperaments are introduced.
/music #music theory #number sequence #long paper #abstract algebra