Thanks to IanC and MMario, I've been able to put together a midi. As ever, available via The South Riding Folk Network site until it gets to the Mudcat Midi Pages:I've modified some note values from Ian's singing in order to accommodate the text above, but the melody is (I hope) exactly as he gave it. At present, the penultimate bar is of three quarter-notes rather than the eighth/ dotted quarter/ quarter I started with; does that sound alright?
It sounds very much like something else, but I can't think what just now...