Rebel yell recorded

I didn't know there was a recording of the Rebel yell:
She didn't think at the time that her painting, called "Rebel Yell" and showing screaming Confederate soldiers charging toward the viewer, would be the subject of controversy.

And she never dreamed it would one day be used to illustrate a national wire story about the discovery of an actual recording of the rebel yell. How that came to pass is interesting in its own right.
Here is what I think is the "wire story" referred to (a press release).