I haven't worked inside a building in 25 yrs, but I get to hollering on a roof top, with the new guy looking as if he'd just seen or heard a ghost & then a few others will join in to a hammer beating & the new guy or anyone else listening look as if it's the strangest thing.This was common in the fields of the old south. Jon, the blues came out of the worksong tradition & was meant to be sung along or moaned or hollered along with. In this case, live music helped a whole culture to survive, to retain dignity and to rid themselves of some of the feelings that oppression begets. As a white folkie, I never cared where or when I sang & because of this big mouth have met alot of other singers, some who I hear from on this forum. One of the people I sing with claimes that singing with others is as close to sex as one could get, a relationship develops where all parties involve are considerate of what each is doing all the time while trying to improve the outcome, over time a harmony is reached in unison and a love blossoms. Happy to be singing. Barry