A pioneering and innovative method of singing practice created in Denmark by Cathrine Sadolin twenty years ago, adopted by thousands of amateur and professional singers around the world. First, you have the possibility of increasing your comfort by applying the 3 basic principles for a healthy voice: Support, Twang and opening of the mouth. Then, it is a question of choosing the character of sound that you want to produce, by modifying the adjustment (the shape) which you give to your vocal tract (zone of the larynx, the mouth and the lips), one speaks then the mode in which you sing. -There is the Neutral mode which refers to soft sounds. -The Curbing mode whose sounds are a little louder and restrained. -Overdrive mode for loud and powerful sounds. -And finally the Edge mode for loud and sharp sounds. Anyone can use the 4 modes and switch between them. When you are in control and know the limitations, advantages and disadvantages of each of these modes, you will in fact be able to sing exactly what you want. you have access to several tools to acquire these new skills and this in-depth understanding of your voice. Before committing yourself, I would like you to think about your motivation, whether you are a beginner, an amateur or a professional, I work exclusively with people who are involved in their learning process.