I'm not offending or defending anyone here, but usually people who sing in live as perfect as in studio version usually just stand still in the middle on the stage, and just concentrating on their singing. It was pleasant to hear, but as KP-X once said, live performance is not just for the audience to hear, but to see as well. I'm not offending Zoa who said that they better stand still in the middle of stage (Kalafina), but if they only stand still on the stage, it'll be a borefest for the audience, although they are really entertaining with their voice, and of course the amount of people who watch the live will decrease drastically, because for me, who wants to see a singer who just stand still in the middle of stage (w/ exception of opera singers) and just singing like studio version? It'll be better if they just buy the CD and listen to it at home. As for me, I never expect a perfect studio quality in live, but I never want to see my favorite artist just stand still in the middle of the stage, don't do any interactions with the audience, and don't move around a bit. But in Kalafina case, I still keep my opinion that they should just rid the choreography, and let them move freely.