This one has an interesting effect on my brain. It calms me down, even right after I have read something utterly preposterous or deeply troubling.
But it's not clear what it is we are hearing in that song. On the one hand:
Composer Jim Wilson has recorded the sound of crickets and then slowed down the recording, revealing something so amazing. The crickets sound like they are singing the most angelic chorus in perfect harmony. Though it sounds like human voices, everything you hear in the recording is the crickets themselves.On the other hand:*
“I discovered that when I slowed down this recording to various levels, this simple familiar sound began to morph into something very mystic and complex … almost human.”
Nonetheless, even if the original recording featured nothing other than the sounds of crickets chirping, exactly what was done to those sounds to create the finished piece remains a subject of contention. Critics contend that Wilson didn’t simply slow down a continuous recording of crickets chirping; they interpret his statement that he “slowed down this recording to various levels” and Bonnie Joe Hunt’s reference to Wilson’s “lowering the pitch” several times to mean that he used multiple recordings of crickets, each slowed down by a different amount to produce a specific pitch, and layered them to create a melodic effect sounding like a “well-trained church choir.”
Whatever the source of the music , I find it very relaxing.
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* YouTube has several other versions of slowed-down cricket song and none of them sound like a church choir or even terribly melodic, though one sounds a bit similar to Wilson's work. But as Snopes states, it's not clear what the original creator of the piece, Jim Wilson, might have meant by having "slowed down" the cricket song.