A world premiere recording! In the course of her research for the five-part album production "Beethoven's World 1799-1851" (2020), the casalQuartett came across not only Carl Czerny, one of Beethoven's two pupils, represented by his 28th String Quartet in A flat major, but also the Viennese composer Anton Eberl (1765-1807), who was Mozart's friend and pupil. ...