Anything by Les Paul and Mary Ford, especially "Vaya Con Dios". Also Roy Orbison, The Eagles, The Carpenters, The Beach Boys, Tina Charles, "Emperor Norton's Hunch" by Tom Baker"s San Francisco Jazz Band.
I don't like the idea of my spending being subject to scrutiny. They will be able to track how much you spend and what you buy, plus the inconvenience of the system crashing (it's happened a few times).