James Kinsley's note to Burns' "For the sake o' Somebody" in The Poems and Songs of Robert Burns, vol. III (Oxford, 1968, pp. 1505-6):

'Written for this Work by Robert Burns' (SMM), this song is based on Ramsey's lovers' dialogue in The Tea-Table Miscellany (i. 191). Burns took only ll. 3-4 from Ramsey's chorus. The air is in CPC [The Caledonian Pocket Companion], 1752, iv. 30, and SMM, 1796, no. 436.* For an alternative melody for ll. 5-8 and 13-16, which may have been composed by Urbani and is now commonly sung, see Dick, p. 405. 'Somebody' has Jacobite associations; it was a synonym for Prince Charles Edward.