" It was in that semifloating state--that transition between the blissful suspension of awareness and the depths of total unconsciousness--that I first encountered the transparent weave of creature voices not only as a choir but as a cohesive sonic event. No longer a cacophony, it became a partitioned collection of vocal organisms--a highly orchestrated acoustic arrangement of insects, spotted hyenas, eagle-owls, African wood-owls, elephants, tree hyrax, distant lions, and several knots of tree frogs and toads. Every distinct voice seemed to fit within its own acoustic bandwidth. "

― Bernie Krause , The Great Animal Orchestra