Thinking also of Dave Taylor's "The Melodeons are Coming" (I play one and bought his CD on the strength of it even though it's taking the p~ss out of melodeon-players).
And George Machray's "No fiddlers like folk fiddlers" (to the tune of "No business like show business")No fiddlers have yet been offended.
Thanks to Noreen, I am going to show this to my concertina-playing friends and will tell you what they say or how they react, but I'm guessing they will laugh. The choice of song on which the parody is based also adds to the humour IMHO.
And for Steve Shaw - Q "How does that tune go?" Answer: Sook, sook, blaw.