DH, Agreed re Hamlet, but I was talking about Adam's Macbeth (ooh, now you've made me say it! - bad luck for ever mair) which IS to the tune of Soldier's Joy.
Ad he does King Lear to another tune (can't remember as I've only heard it once), and Romeo and Juliet to the tune of The Atholl Highlanders.
And his name is McNaughtan (with 2 As) - I got it wrong too, with Mac instead of Mc!