With the publication of the Middle Sonatas, the three-volume B„renreiter Urtext edition of Schubert's piano sonatas is now complete. A detailed Foreword on the genesis and source situation as well as in-depth notes on piano playing in Schubert's time (including articulation, the use of pedal, ornamentation) with a special focus on Schubert's characteristic accent notation introduce the sonatas.
In particular the Critical Commentary lists relevant readings concerning interpretation. Schubert's sketches and sonata fragments are accessible via the B„renreiter website.