Waitrose, M&S, Lidl and Aldi rated top supermarkets: all of them free of piped music

In a Which? survey of shoppers’ ratings of supermarkets, Waitrose came top, followed by Marks and Spencer, Aldi and Lidl (excluding the on-line shopping service that Iceland offers.) All these chains have their differing virtues of course but all have one thing in common: they are free of piped music. Coincidence? Of course not!