Original tekst: Hoffmann, Norbert Rudolf. Ritze-Ratze. Viola. Doublebass. Modern. Pieces. For viola, double bass. Scores featuring the viola. Scor ...
Oversættelse: Hoffmann, Norbert Rudolf. Crack-Ratze. Viola. DoubleBASS. Moderne. Pieces. For bratsch, kontrabas. Scores byder på viola. Scores b ...