CLW is right on, especially as regards the "celtic rock" groups. I've not been the the fest for a few years, but it used to be that the Celtic rock" groups were largely confined to the northernmost stage area. And there were always the tents which featured acoustic music with "traditional," or at least more conventional, microphone gear. It took me awhile to warm up to the CR stuff, mostly (I think) because it struck me as more rock than celt. I eventually came to enjoy some of it, but the loudness that seems 'de rigour' remains an impediment. But then, when you hear the lyrics of Larry Kirwin (Black 47), what's not to like? Praise the muse of difference.