I am from Austria - Reinhard Fendrich
https://www.youtube.com/watch?v=hFGId9pwJTM

An der schönen blauen Donau (The Blue Danube) - Johann Strauss II
https://www.youtube.com/watch?v=T3eSB609UPU

These two remind me most of Austria. Also An der schönen blauen Donau is my favorite waltz! I have kind of mission to visit every city which Danube flows through. Those cities are Regensburg (Germany), Ulm (Germany), Vienna (Austria), Budapest (Hungary), Belgrad (Serbia), Ruse (Bulgaria) and Braila (Romania). So far I have been in Vienna and Budapest so my mission is going on slowly.
Btw, in video not all photos are from Danube. For example, there is photos from Prague (Czech Republic) but the river in there is actually Vltava. Not Danube.