The position of the larynx is fundamental to the pitch. It is raised on high notes and lowered on low notes. The larynx should be positioned within an exact area in order to permit a certain tone (the white area in the illustration). If you lower the larynx beneath this area or raise the larynx above this area (the grey areas in the illustration) you will not be able to reach the note. Within the specific area (the white area in the illustration) that corresponds to a specific tone, you can slightly adjust the position of the larynx to change the sound colour. If you raise the larynx a bit, the sound colour will become lighter and if you lower the larynx a bit, the sound colour becomes darker. So, a note with a lighter sound colour may have the same larynx position as the note above with a darker sound colour.