Violin Sonata no. 1 in G major, op. 78

The Violin Sonata No. 1 in G major, Op. 78, Regensonate, the first of three such works for violin and piano, was composed by Johannes Brahms during the summers of 1878 and 1879 in Pörtschach am Wörthersee. It was first performed on 8 November 1879 in Bonn, by the husband and wife Robert Heckmann (violin) and Marie Heckmann-Hertig (piano).
The autograph manuscript of the sonata is preserved in the Wienbibliothek im Rathaus.