The mule song I remember is one i heard on an old 78 RPM record at the old homestead...i think it was by Chubby Parker... Whoa Mule Whoa
it went on to say: can't you hear them holler, tie a bow knot in the tail or he'll jump through the collar, why don't you turn him on the track, why don't yo let him go? every time I turn around it's Whoa Mule Whoa...Whoa, Mule, Whoa by Chubby Parker, 1927            
Chubby Parker... Whoa Mule Whoa 1927

Whoa Mule Whoa don't you hear him holler,
Tie a bow knot in his tail or he'll jump through the collar,
Why don't you put him on the track, why don't you let him go?
Every time he comes around it's Whoa there Mule Whoa...

Chorus
Riding on a hump back mule, oh, mule, riding on a hump back mule
When I pass her by she winks that rogueish eye
Riding on a hump back mule

Whoa mule whoa, you got them eyes a blinkin’
You switch your tail, you lift your foot, You got me a thinking
Something’s gonna happen sure, To you or me I know
Every time he looks around it’s whoa there mule whoa
        Chorus
Whoa mule whoa He certainly am a sinner
He bit the tail off grand dad’s calf and ate if for his dinner
He killed a pig and kicked a cow, He’s certainly on the go
Every time he comes around it’s whoa there mule whoa
        Chorus
Whoa mule whoa I’m done with you forever
You ain’t no good, you never was, You never could be neither
You’re gonna die and take a trip To the hot place down below
When old Satan sees you coming in he’ll shout Whoa there mule Whoa
Chorus