Humans organize sound and call it "music", but once while walking in a stand of virgin pine in northern Michigan, I absolutely heard the sound of wind streaming through pine needles as music; thrilling music at that, like high strings in an adagio. Then there's birdsong, elk song, coyote song, etc.
Another time (long time ago) I went to the local mall, and the minute I stepped inside, I heard what sounded like the wildest electric guitar duet ever - the two tones were swooping and diving like hawks, with a huge reverb on it. A second later I realized it was actually a couple of skilsaws being used somewhere down another wing.
So any definition would have to be pretty broad, which the one in the subtitle is.
Yes Chuck, I'm still the "dreamy mystic".