"Reiterlied" ("Horseman´s Song") from the operetta "Gräfin Pepi" ("Countess Pepi") "Reiterlied" ("Horseman´s Song") from the operetta "Gräfin Pepi" ("Countess Pepi") composer Johann Strauss (Sohn) Main opus "Gräfin Pepi" ("Countess Pepi"), operetta