Oh, how I love the demo tracks on Silver Box. The one getting the most appreciation at the moment is Love Song. That stripped back quality of it. Just bass and guitar driving it…and all those little…almost…night rainforest/jungle sounds on it.
The demos are usually accredited as being produced by Mick MacNeil. I know nothing of production, really, but from what I hear, Mick would (and does) make a great producer.