The waltz is a ballroom dance that had its heyday after World War II. It is danced in pairs and only the legs move, since the rest of the body remains upright. One of the most important waltz composers was Johann Strauss. You have all the information in: «Typical dances of Germany: folkloric and traditional dances«.
You have all the information in: "Typical dances of Germany: folkloric and traditional dances".