There's also this one (Music Hall - so not strictly "traditional"):
"It's a Fine Thing to Sing", words and music by Willie Cochrane and Harry Lauder on this website

I've only ever heard this song once, and had no idea where it came from until I searched for it on the net just now. I heard it sung by a guest male/female duo ("big names" in folk at the time - no idea now who it could have been) over 30 years ago, but the chorus and melody and memory of such a roof-raising time singing it have stayed with me and I often find myself humming it. Thanks for prompting me to search for it !

- jeanie