All of these tracks are ``amplified through sound editing at 528Hz, the fundamental frequency of the Solfeggio frequency, which is said to stimulate the parasympathetic nervous system and provide a relaxing effect.''br br My name is Tino, a composer.br I use all original ambient music sound sources that I composed myself. br br We are also streaming ambient sound sources that are particular about healing and relaxation, so please check it out on our official website.