Heather Powell definitely has flawless vocal technique, as she more than likely has been classically trained. She has the ability to project to the back of the house with pitch-perfect accuracy, a skill only seen in well-trained opera and musical theatre singers. An unfortunate side effect of this level of skill is that the emotional projection can be sacrificed in favor of technique. This is the case with most of the songs on "A Haze of Grays and Blue", though it is clear with her lyrics that there is something very emotional and personal Powell wanted to connote.