There was a great NPR feature on "All Things Considered" about a week ago concerning the new Louvin Brothers tribute album project. The producer admitted that he was unable to resist the temptation to chime in with a third harmony part on a couple of the duets.

For those who aren't familiar: NPR is National Public Radio in the US, and "ATC" is their daily evenings news program. You can go to

www.npr.org

to listen to this and other stories. Just do an on-site search for "Louvin Brothers." I'm not sure how far back they maintain their archives, but I'm sure they hold onto stories for at least a month if not longer.