The sonatas for natural horn and fortepiano by Franz Danzi, Ferdinand Ries und Nikolaus von Krufft are virtuosic compositions with stunning dialogues between the horn and piano parts. They explore the full range of timbres, flamboyantly surpassing classical structures in search of new modes of expression. The verve and profusion of colors in the performance of Steinar Granmo Nilsen and Kristin Fossheim incorporate the early romantic idea that music was the most royal of all arts.  Ferdinand Ries (1784-1838) Grande Sonate F-Dur, op. 34, 1811  Franz Danzi (1763-1826) Sonate Es-Dur op. 28, 1804  Nikolaus von Krufft (1779-1818) Sonata E-Dur, 1812