The first of the last string quartets written by Beethoven, opus 127 in E flat major, is undoubtedly one of the major compositions of the composer's work, and even of the musical form considered as a whole. For many years now, the musical world has been waiting for this new edition in accordance with the text of the new complete edition of Beethoven's works [Neue Beethoven-Gesamtausgabe]. It was worth the wait! For the first time, in fact, the particularly complex state of the sources and thus the composer's “last wishes” are presented in the context of an Urtext edition. The instrumental parts (HN 740) and the score (HN 9740) have their own accompanying text, providing detailed information about the edition.