Wow Joe, thanks a million. I didn't know about Nic Jones singing it, & in fact I missed PKD's response to my original thread somehow. I don't suppose the tune is there as well, by any chance?
Alison suggested I refresh this thread after I'd posted to a thread which mentioned the Cock of the North, another of Martyn's songs. So, apologising for making my own thread creep, I'll just note here that I offered to get the tune for Cock of the North from Martyn, but my husband has just reminded me that he learns songs by ear & the only way to get a tune from him, particulrly an old one, is to get him to sing it through once to remind himself, then again very slowly so you can write down chords & notes. I may have the tape with it on somewhere though, so if anyone wants it I will sort out the tune.