Id really like to take the Vocal Master Class, but I have no idea what to sing. How should I decide?
The purpose of the master class is to give the student an opportunity to get feedback on their developing style from both an accomplished, experienced instructor and from other students at the same level of development. In order for this feedback to be meaningful, you should pick something that represents your “best shot” a piece that you sing well in your view and that you can perform comfortably. It probably shouldn’t be something you learn the night before the first class, unless what you really want is suggestions about interpretation of that particular piece.
