Fire Marengo is an old cotton screwing worksong. The “Marengo” was a machine that compresses cotton into a ship’s hold, and had to be turned by hand by several sailors. It’s not hard to hear how this song would help you to do that.
This version of the song is performed by The Dreadnoughts, a Vancouver BC folk-punk band.
There are files available for both Jack'O'Lantern Jamboree pumpkin layout, or a Singing Pumpkins layout, depending on how you have your pumpkins positioned.
Once you've completed your purchase you can click Library in the upper-right of the navigation bar. In your Library you should see Pirate Pumpkins sing Fire Marengo listed. Click the View Content button. This should open a view where the name of the file is listed with a download button to the right of it.
Download the file to your computer, noting the folder to which you've chosen to download it. Once the download is complete you can copy it from your computer to a USB thumb drive, an SDCard, or a media playback device if your projector supports those formats. See the instructions for your projector for available playback options.
Pirate Pumpkins sing Fire Marengo by The Dreadnoughts