What are your thoughts on the implementation of such light music?

Question

Electronics

It can be seen how light music distinguishes instruments and "feels" the mood of the music, how can something like this be realized?
https://www.youtube.com/watch?v=yt2Drq1BmX8
UDT: I know that the light music was written manually in the video, but I want to achieve this programmatically, a video to demonstrate what I would like to get

Answer 1

Hey! Here's a peekaboo post . She talks about the implementation of the idea of ​​this particular tree in the video.
And pay attention to the answer of the author of this Christmas tree

Answer 2

feels the instruments

Based on the frequency ranges of instruments.
In different styles of music, there are certain sound patterns that you can try to find through analysis and comparison.
But on the video, the tree just blinks to the rhythm - this can be done by highlighting the low frequencies of the drums and bass. When they appear at the input (exceed a certain threshold value) - we light the LEDs, then slowly turn them off. This is realizable even on analog circuits.