Time-Machinist
AstroChilde
Those high ranges are just falsetto voices. FOr example, Kiske also uses very much falsetto. But he sometimes reaches high notes without falsettos, which i haven't seen in Diamond's style. Reaching high notes with falsetto is not something very difficult, as you think. As a vocalist myself, i see no point in trying to imitate such a style, which should not mean i can not. You never know And if you want to see a singer who can sing at extremly high ranges yet he could switch to the lowest growl in a second, try Dani Filth. But such screams and growls are not accepted as a person's real voices either. It is hard to express in english for me but, they are more with the help mof your throat, rather than your vocal chords...