It shows a baby in the mother's womb surrounded by amniotic fluid during the last trimester of
. The external sounds are muffled, but the creator noted that "babies become increasingly capable of hearing a range of musical tones, and studies confirm that babies react — in the womb — to the sounds they hear."
He went on to suggest that if a song is replayed, the late-term foetus may recognise it as a newborn.
"I came up with the idea to simulate the above situation using spatial sound. I managed to put an ambisonic recorder in an enclosed basket filled with water and recorded the sound of an African lullaby coming through an outside Bluetooth speaker," he wrote, before advising listeners to use headphones while playing.