Hello.
My voice is contralto, with initial data from the note B of the great octave to the note A of the first (well, with difficulty to B). Now my range is a little wider (from the note B-flat of the great octave to the note E, with difficulty - F of the second octave), but when I listen to songs or choirs where high, "silver ringing" voices sing, I understand that I want to sing just as beautifully and at the same height. The question is - will it be harmful to the vocal cords if I expand the range upwards (and additionally - downwards)?
Thank you.