This is an example entry.
Frog rides to ask Miss Mouse to marry him. She is willing but must ask permission of Uncle Rat. In other versions such as “King Kong Kitchie Kitchie Ki-Me-O” by Chubby Parker, Frog fights and kills Miss Mouse’s other suitors (an owl, bat and bumblebee) after they interrupt his proposal. Uncle Rat’s permission received, the two work out details of the wedding. Some versions end with a cat, snake or other creature devouring the couple and wedding guests. Sometimes Frog gets away, but is later swallowed by a duck. See “Frog Went A-Courting” at Wikisource for one version of the lyrics.
Usually, the final verse states that there’s a piece of food on the shelf, and that if the listener wants to hear more verses, they have to sing it themselves. Wikipedia
You can edit versions of this melody and lyrics at pdfoundry inbox