I may be the only person currently playing this song. It's a tune from Western Prince Edward Island written by Larry Gorman in the 1860s-70s. It's called "The Horse's Confession." The story is that Larry's brother purchased an older horse and Larry thought the horse was being over-worked and misused. Gorman wrote the tune in the voice of the horse as he details his story and complaints. Here's a version I recorded with the lyrics transcribed onscreen

https://www.youtube.com/watch?v=H13qcZRPfpo