@cundare2 Thanks for your thoughtful and explicit reply! I hit on Kind of Blue as a likely candidate after doing a bit of research. But when I first played it, I had the same reaction as most people have when they are confronted with their first classical piece. I like it more (loathe it less) each time I play it, and even find myself humming bits in my head.
My partner, who has much wider tastes in music, is still in the loathe it camp.
You mention Quad ESL speakers, without specifying the model. Usually Quad ESL on its own means the first model, which is sideways on three legs. Now known as the ESL 57 for the year it was introduced. I have a pair of Quad ESL 2905 which use completely different principles, and are a development of the ESL 63.
The UHQR recording of Kind of Blue is in-stock in Sydney for A$300. Deep breath! But only a bit more than twice the price of the Original Master Recording I mentioned. I am tempted ...