There is a splendid hornpipe called "The March Hare" which was a huge hit for Mickie Ainsworth (of Jimmy Shand's band) in the 1950s. It was later played in a slightly different version by Will Starr.

I've always assumed it was Irish, but it seems to appear in no Irish source and you never hear Irish music buffs playing it. Anybody know where Ainsworth got it?