I have also included a link to some research about the benefits of group singing. (allaroundthepiano.com)
The findings could shed light on the role group singing played in ancient human societies, and they suggest ways to encourage group bonding today. (sciencemag.org)
As a parent it was lovely to hear squeals of delight from the pool while they played «sharky sharky» and seeing them walk by in their little groups singing songs. (mummymummymum.com)