This complete edition of Beethoven’s correspondence has been edited by Sieghard Brandenburg on commission from the Beethoven House in Bonn. It forms a milestone in the study of Beethoven, being the first complete edition in German to be compiled and fully annotated in accordance with modern scholarly-critical criteria.

The edition includes all of Beethoven’s known letters (1,789 items of primary correspondence), all obtainable letters written to him (370 items of secondary correspondence) and...