Thank you very much for your reaction! I love Crystal King!! They are a fantastic band! By the way, i highly recommend Ai Wo Torimodose and Yuria...Towani (anime songs) of Crystal King!
Tanaka being pretty conservative in this performance, his voice could go higher than that in terms of volume and range. Watch earlier performances, from 1979 onward. Maybe he was sick or the smoking started to take a toll on his voice.