The Trooper and His Nag

There was an old woman lived under a hill.
La lay-la lay lally-lally-low.
She had good beer and ale for to sell.
Lally-low, lally-low, lally-lally-lally-low.

She had a daughter, her name was Sis.
She kept her at home for to welcome her guests.

There came a trooper riding by.
He called for drink most plentiful-ly [var: plentiful, aye.].

When one pot was out he called for another.
He kissed the daughter before the mother.

[And] when night came on to bed they went.
It was with the [her] mother's own consent.

Quoth she: "What is this, so stiff and warm?"
"'Tis [It's] Ball, my nag!  He will do you no harm."

"But what is this hangs under his chin?"
"'Tis the bag he puts his provender [plunder] in."

"Quoth he: "What is this?" Quoth she: "'Tis a well
[Var: "What is this?" quoth he. Quoth she, "~'Tis a well]
Where Ball, your nag, can drink his fill."

"But what if my nag should chance to slip in?"
"Grab hold of the grass that grows on the brim.

"But what if the grass should chance to fail?"
"Shove him in by the head; pull him out by the tail!"

This is a bawdy variant of Child 299, "The Trooper and the Maid."  It was, presumably, learned from a book by an unknown singer who then recorded it on a tape recording prior to 1990.  The recording relaunched the ballad in at least a limited oral and/or printed tradition among performers at Southern California's annual Renaissance Pleasure Faire.
It was furnished in 1994 without tune by Pasadena, California, attorney Roger Gray, a parttime performer at the Renaissance Pleasure Faire.  Gray has deliberately gathered songs from various sources, both oral and printed, to present as a "strolling minstrel" at the pageant.