I don't think the yodeler is a recording and he also did a rather awful
rendition of Dixie one morning.

Margy

John Thompson wrote:

The Yodeler and the radial engine sounds are traditions, going off at
7AM. I didn't hear it every morning though, and while the yodeler (Both
are recordings actually) usually starts after the radial, I did hear it
the other way once.

John