CARL HEINRICH GRAUN (1704-1759)

Beethoven copied examples of vocal compositions by Carl Heinrich Graun from the article "Rezitativ" in Johann Georg Sulzer, "Allgemeine Theorie der Schönen Künste" (autograph in Beethoven-Haus Bonn, HCB BSk 11/59, presented online).
See here the most famous work by Graun in a vocal score arranged by Johann Adam Hiller (1728-1804), early tutor and promoter of young Neefe in Leipzig, before Neefe became young Beethoven's teacher in Bonn.