And now for some relaxing spa music. Honestly, I’m not at all sure how Celtic music came to be associated with spas, but we do tend to think of it as definitely conducive to relaxation, and vaguely ‘good for you’ on a spiritual level. Moya Brennan has been part of the Irish music revival since it began in sixties, and remains one of its best known figures. She’s seen her musical heritage go from about as unhip as a set of muddy Wellies, to pretty edgy, to widely respected and commercially viable. You can thank her for making the harp a pop instrument, and you can blame her sister for that crap you hear at the spa.