I've gotten quite interested in music lately and decided to try some experiments where I visualize various sounds and music in the frequency domain using algori

I've gotten quite interested in music lately and decided to try some experiments where I visualize various sounds and music in the frequency domain using algorithms like Fourier transform and variants such as Welch's method for spectral density estimation. This works best on a device like a computer which is capable of 60 frames per second or higher refresh rate. Please also change the resolution in YouTube settings to 720p60 for best results. Warning: these videos contain lots of visual movement (basically lines moving around like on an oscilloscope), please avoid viewing if you are prone to seizures. But it should be fine for normal people (the level of visual intensity is comparable to watching an action movie). A few examples: 1. Dialtone using dual-tone multi-frequency signaling and 56K dial-up modem connection: https://www.youtube.com/watch?v=FomWraKuDFg&list=PLn67ccdhCssEJsJE6BnAqqBCDIdQHPFQb https://www.youtube.com/watch?v=FomWraKuDFg&list=PLn67ccdhCs... 2. Deluxe Multitone Car Alarm: https://www.youtube.com/watch?v=A4uKcvZL7HM&list=PLn67ccdhCssEJsJE6BnAqqBCDIdQHPFQb https://www.youtube.com/watch?v=A4uKcvZL7HM&list=PLn67ccdhCs... 3. Composition using only sounds from Windows 98 and XP https://www.youtube.com/watch?v=6lT-jr9sS6Y&list=PLn67ccdhCssEJsJE6BnAqqBCDIdQHPFQb https://www.youtube.com/watch?v=6lT-jr9sS6Y&list=PLn67ccdhCs... 4. Piano Music (Ballade Pour Adeline): https://www.youtube.com/watch?v=RnAfrEk429w&list=PLn67ccdhCssHTboc1l6tK_j-16u9Z3G_8&index=1 https://www.youtube.com/watch?v=RnAfrEk429w&list=PLn67ccdhCs... 5. Electronic Music Demo: https://www.youtube.com/watch?v=MllJLIX1glg&list=PLn67ccdhCssHLdXIUHHNVaO-N8fCY_Wi5&index=1 https://www.youtube.com/watch?v=MllJLIX1glg&list=PLn67ccdhCs... 6. Super Guitar Bros. cover of the Gerudo Valley song (from Legend of Zelda: Ocarina of Time) https://www.youtube.com/watch?v=XXVbDfj4lzY&list=PLn67ccdhCssHUjSJoZfGU7O1nvxl_9jLM https://www.youtube.com/watch?v=XXVbDfj4lzY&list=PLn67ccdhCs...