I bought the sheet music before I found it on line - a search by the music retailer showed many different arrangements in many different compilations - including just the song on its own arranged for piano.

I was once at a festival 'blackboard walk up and play' segment (now I don't wait, I get in EARLY on the list! ) and a couple did a version with hammered dulcimer and banjo - since it was my new 'party piece' I had just worked up on the Piano Accordion, I was annoyed at first, but did it later anyway.

We spoke after - we both agreed that our versions were SO different that neither of us were really worried.