Two audio examples: the first is the song sung once through so you can hear the melody and the second is the song once through as a three-part round.
These examples of "Babylon" are performed by Bards in a Box
Please refer to Cantaria's Copyright information

"Babylon" or "Waters of Babylon" is a traditional round. The lyrics come from Psalm 137:1.

By the waters, the waters, the waters of Babylon
We lay down and wept, and wept, and wept for thee Zion.
We remember, we remember, we remember thee, Zion.