Any of the existing good Schools may be used in their practical part for the elementary grades, the easier works of Bach being selected for the intermediate grades. With such a foundation laid, one may go on building up the structure. I would here oppose the wrong idea that my object is to upset all that has existed heretofore, and to explain music by psycho-physiology. Our aim is to do away with wrong ideas and to trace back to their real and natural sources the action of our playing members and the effect produced by them.