Josef Matthias Hauer was an Austrian composer and music theorist. He is best known for developing, independent of and a year or two before Arnold Schoenberg, a method for composing with all 12 notes of the chromatic scale. Hauer was also an important early theorist of twelve-tone music and composition.

Wiener Neustadt is a city located in the Steinfeld south of Vienna, in the state of Lower Austria, in northeast Austria. It is a self-governed city and the seat of the district administration of Wiener Neustadt-Land District. The city is the site of one of the world's oldest military academies, the Theresian Military Academy, which was established by Empress Maria Theresa of Austria in 1751 to train officers for the Austrian army.