50 Jahre Österreichischer Nationalfeiertag am 26. Oktober 2015. Der Walzer "An der schönen blauen Donau" von Johann Strauss (Sohn) gilt als die heimliche Hymne Österreichs. 50 years Austrian National Day on October 26, 2015. The waltz "The Blue Danube" by Johann Strauss II is something like an unoffical Austrian national anthem.
Music: "The Blue Danube Waltz" (main theme) for piano by Johann Strauss Jr. (1825-1899) Christian Mondrup, from the Werner Icking Music Archive Creative Commons Attribution-ShareAlike 4.0 I converted the mid-file into a wav-file with MuseScore. Idea by Schmams: https://scratch.mit.edu/projects/13102642/
