Monkeys Spinning Monkeys by Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0
https://creativecommons.org/licenses/by/4.0/

Official track page:
https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1400011
Official source recording:
https://incompetech.com/music/royalty-free/mp3-royaltyfree/Monkeys%20Spinning%20Monkeys.mp3

Instrumentation: flutes, violin, viola, cello.
The recording is bundled unmodified under the filename orchard-ensemble.mp3.
In-game playback uses reduced volume, looping and a small pitch-preserving
speed increase during the final 30 seconds.