Friedrich Wieck 
Piano and Song [PDF ebook] 
How to Teach, How to Learn, and How to Form a Judgment of Musical Performances

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. I have omitted in the translation a few portions on the composition and management of the opera, on the giving of concerts, and on the construction of the piano, thinking that they would be of little interest or practical value to the general public.