It is possible to record the sounds of nature, such as the sound of waves, frogs and the sound of running water at night.
I know a little. Liao Yuepeng's "Lullaby for Regulating Body and Mind" sings background music in English.
The overall background music of Liao Yuepeng's "A Lullaby for Mind and Body": 0 1. The sound of silence.
02. imagine
03. Breathing of the wind
04. The purple butterfly
05. The whistle of the wind
06. The river is flowing.
07. Magic Wind