This new scholarly-critical edition of String Quartet op. 127, the first of BeethovenÂ's late quartets, follows upon Urtext publications of opp. 18, 59, 74 and 95.

Once more the editor is the renowned Beethoven authority Jonathan Del Mar. All surviving sources have been consulted including sketches to clarify the conflicting readings in the autograph. Not only has Del Mar reconstructed BeethovenÂ's original beaming, phrasing, articulation and length of crescendo hairpins, he has also corrected wrong notes that have taken hold in editions published over the years and has supplemented missing notes.