Although some portions of Thayer's original text have been deleted because recent Beethoven research has proved them inaccurate, "the majority of the text used consists of the coordinated treatment of Thayer's notes and manuscript by these three editors [H. Deiters, H. Riemann, and H. Krehbiel]" with additions and corrections by the present editor.

Although some portions of Thayer's original text have been deleted because recent Beethoven research has proved them inaccurate, "the majority of the text used consists of the coordinated treatment of Thayer's notes and manuscript by these three editors [H. Deiters, H. Riemann, and H. Krehbiel]" with additions and corrections by the present editor.