Lighter, correct but the tunes chosen were old tunes. The Auld Lang Syne original tune was “recently” rediscovered and sung quite widely. Also Tannahill’s Braes o Balquhither is sung to RA Smith’s arrangement rather than The Three Carles o Buchanan as chosen by Tannahill.
It’s a question of the printed version given more publicity in books, I think that’s what happened to Gleadhill’s Victorian “round the piano” version. But my main point is that folk have been think Gleadhill’s is the tune Burns chose. As I’ve said before I don’t care which tune people use as long as they know what they’re singing. I have discovered, after looking into this, that most people copied Archie’s tune even stating on their CD notes that this WAS Oswald’s Secret Kiss.