Friedrich Wieck,
Piano and song
“ But why has the acquirement of this technique been usually unsuccessful?1. Because you begin to acquire it too late. In order to gain facility and flexibility of the fingers and wrist (which a child in the sixth or seventh year, with a skilful teacher, may acquire in four lessons) , from fifteen to twenty lessons, according to the construction of the hand, are necessary with persons from ten to fourteen years old. ”
