I have to confess that I, too, got lost at Bruce's site looking for Grismond (though I did find some very interesting stuff about The Beggars of Coudingham Fair); the text isn't hard to find, but I couldn't locate a tune -not to worry, though.  The DT entry for  William Grismond  has midis of the two tunes that Stephen Sedley printed in The Seeds of Love (1967); the file doesn't name sources for them, but the first is a traditional one (collected early 20th century) from Gavin Greig's MSS, and the second is from the appendix to Kinloch's Ancient Scottish Ballads (1827).

Malcolm