Page:Letters to a Young Lady (Czerny).djvu/89

 Most of these chords have likewise their different positions; and in what manner these are formed, I have already explained in the preceding letters, in treating of the common chord and the chord of the seventh. But I must again repeat that these chords must be practised in all the keys, if you wish to derive any practical utility therefrom.

But enough on this subject. My view was only to give you a general idea of Harmony or Thorough-bass; and when you begin the study of it in a regular manner,—and I hear with pleasure that you are shortly about to do so, and that your worthy teacher has selected for this purpose the excellent Treatise on Harmony by Reicha, —all that I have hitherto said on the subject will serve to facilitate the acquirement of this science.