Generally speaking, I'm a firm believer in staying far, far away from square dance records. There are, however, a few exceptions. Joe Maphis, for instance, released a few square dance instrumentals that are worth hearing for Maphis completists.
Another exception is this oddly captivating version of Mack The Knife, by The Squarenaders, which is almost certainly one of the greatest band names in all the world.
Squarenaders - Mack The Knife (3:47!)