Crickets

http://www.trueactivist.com/gab_gallery/someone-recorded-crickets-then-slowed-down-the-track-and-it-sounds-like-people-singing/

A came across very interesting recording, a stretched out track of crickets, that sounds like an angelic choir. The natural track is also played over the top for comparison. Recorded and produced by Jim Wilson, this raises interesting questions about the nature of animal communication and consciousness.