I have an explenation why. People want to feel power in the singers voice,that's what amuzes all of us.She has a nice voice okay,but sincerely i've expected more when I saw the title "symphony"..and don't get me wrong I'm not against (not even pro),only theese songtypes need a powerful voicetonality,that she doesen't have.But of cours this is my point of view:)
