All just my personal opinion
Beethoven / Klavierissimo Festival 2020, Recital 1 @ KZO, Wetzikon ZH, 2020-01-28 — Piano Sonata No.1 in F minor, op.2/1 (Tamar Beraia); Sonata No.2 in A major, op.2/2 (Alina Bercu); Sonata No.3 in C major, op.2/3 (Herbert Schuch); Sonata No.4 in E♭ major, op.7 (Werner Bärtschi). Mostly a review in pictures.
Blog post #539 — #rolfsmblog •
Concert review, ★★★★½, Konstantin Scherbakov, Beethoven Sonata Cycle, Recital #1 @ Aula, Alte Kantonsschule, Zurich, 2019-09-21 — Piano Sonata No.1 in F minor, op.2/1; Piano Sonata No.2 in A major, op.2/2; Piano Sonata No.3 in C major, op.2/3; Piano Sonata No.4 in E♭ major, op.7
Blog post #508 — #rolfsmblog •
Review, Piano Recital Werner Bärtschi @ Konservatorium Florhofgasse, Zurich, 2018-03-09 — Beethoven: Sonata No.1 in F minor, op.2/1; R. Febel (*1952): “Expanding Universe”; W. Killmayer (1927 – 2017): “Am Grat”; M.E. Keller (*1947): “Selbstgespräche”; Bärtschi (*1950): “In Trauer und Prunk”; Beethoven: Sonata No.32 in C minor, op.111
Beethoven: Piano Sonatas — summary for comparisons of recordings, involving the following artists: Wilhelm Backhaus, Paul Badura-Skoda, Daniel Barenboim, Ronald Brautigam, Edwin Fischer, Emil Gilels, Friedrich Gulda, Clara Haskil, Jos van Immerseel, Julius Katchen, Wilhelm Kempff, Igor Levit, Mikhail Pletnev, Maurizio Pollini, Svjatoslav Richter, Arthur Rubinstein, András Schiff, Artur Schnabel, Mélodie Zhao