This song should be "Lost Rivers". This is experimental music.

Music as commonly understood, whether it is romantic, classical or non-academic folk music, all “expresses” a certain emotion or belief. In other words, the composer’s “self” is present.

Experimental music aims to pursue a highly pure listening experience without any meaning. For example, the sounds made by birds, animals, fish and insects in the forest, the "sounds of listening to the running program logic" made by computer musicians, or even the recordings of a certain road section in the city of Shenzhen, in the eyes of experimental musicians, their essence They are all the highest worship to sound.

“Let the sound speak for itself” is the biggest difference between experimental music and all traditional music.

Noise music:

Noise music can be traced back to the "Noise Art" manifesto issued by the futurist painter Luigi Russolo in 1913. Noise music is essentially processed "noise", just like movies are "processed reality".

It has been segmented, distorted, amplified, and collaged, but it is still very different from the stiff, childish and simple realistic noise that does not understand the slightest change and artistic reprocessing.

Reference for the above content: Baidu Encyclopedia-Experimental Music