When you are accompanied by the instrument - on an instrument like the lute-the lute and voice - you have this sound, and you feel how the music can be so touching and yet so simple.
When I had my first voice lesson I was 15 years old. And I had a really good teacher. This is what made all the difference. A good teacher will teach you the technique, but also how to listen to your voice.
Well, I don`t think a specific role can destroy your voice. What can destroy your voice is when you... make an error. Everybody can make an error. But then you need to realize what is your way.