From http://www.smsu.edu/folksong/maxhunter/1014/

Keep Your Saddle Tight

A bunch of foaming mustangs
Charging around the corral
You know just how to ride one
No need for me to tell
 

So if you get the right one
An' you know that you are right
Don't step into that saddle
Till you know that it's good an' tight
 

Of all of crazy critters
You ever tried to halter
The one that is the worst one
When she's prancing around the alter