The David Bradley video is quite good.
ljc, yodeling is meant to be done at full blast. :-)
Hrothgar, don't be so cruel. (pout) Believe it or not, people actually ASK me to yodel. Maybe they just wanna laff at me, I don't know. ;-) At any rate, it's a skill I worked hard for, and one I am proud of.
If you can find any Elton Britt recordings, grab 'em up. They are pretty scarce. And Don Edwards... well, he's my hero. And a nice guy too.