Beethoven's Sonatas for Violin and Piano comprises the three sonatas Op. 12, composed around 1797/98, as well as the pair of sonatas Op. 23 and 24, composed in 1800, the latter of which later became known as the "Spring Sonata." From the outset, Beethoven's violin sonatas were duos for two equal partners. Musically, they are of distinct character and are in no way inferior to the piano sonatas in terms of invention and boldness, both formally and harmonically. This new edition is based on all surviving original sources, as well as on Simrock's meticulously edited reprints. The edition retains plausible differences between the two instruments (for example, in bowing technique); unjustified adjustments have been deliberately avoided. The performance notes explore the essential aspects of performance practice in Beethoven's time, from both a violinist's and a pianist's perspective.