"Anna has been my voice teacher for 10 years. Thanks to her, I have learned to know my voice and give it the time it needs to grow. With Anna I have learned to sing many styles of music; I have worked on different musical styles, technique, and presentation, which helped me a lot when I auditioned at the Zürich Opera house. I recommend Anna for anyone who wants to sing freely and for professionals who need to prepare for auditions. She's also good for those who have lost their voice due to bad technique and want to recover in a healthy way." - Diomari M.