. ♪ all: ♪ ooh, ooh, ooh munger: i am kate munger. i am the founder of the threshold choir. a volunteer slot for a friend who was dying of hiv/aids. it was very distressing to see him comatose and agitated. so i did what i did at the time when i was nervous or afraid, and i started singing. i watched him calm, settle, get positively serene, and i calmed, settled, and got positively serene. i felt that i had discovered something, or rediscovered something, an ancient practice that tribal humans do for one another when someone's struggling. sager: it's helped with relieving some of my pain, some of my physical pain in my head. i just smile a lot. all: ♪ my grateful heart kirner: i came close to death. i had a brain tumor that was very large, and it was a pretty scary time. i came out of that surgery blind and unable to walk, and i had an opportunity to decide, "okay, what am i gonna do now? you know, if i get better, i'm gonna do something -- something important." i always loved to sing, and i heard there were these people that sang to people who were dying. and i thought that