First of all, if these books have all the secrets, they are no longer secrets. Now down to facts. All high range methods are based on known features and how these features differ will explain why some techniques work and some don’t. I will discuss general categories which will help to explain the theory and application of these different approaches.   Pedal Tones and how they work. Many methods utilize the practice and effects of pedal tones when trying to increase one’s high note range. Pedal tones include all notes played below the normal limitations of the instrument; any note…