May this last acknowledgment appease all those critics whose hair is made to stand on end by my inelegant mode of writing.

I will make no further apology for my style.

I have often availed myself of the dialogue form, because it was conducive to brevity; not less frequently I have made use of the form of the epistle and of personal discourse, as being more congenial to my individual manner than that of a serious treatise.

I have also undertaken to say something about singing! A piano-teacher, if he is possessed of mind and talent, as I suppose him to be, whether he teaches the elements or occupies himself with more advanced instruction, should understand the art of singing; he, at least, should show a warm interest in it, and should have an earnest love for it.

When I speak in general of singing, I refer to that species of singing which is a form of beauty, and which is the foundation for the most refined and most perfect interpretation of music; and, above all things, I consider the culture of beautiful tones the basis for the finest possible touch upon the piano.