Where was Melody of the Heart filmed?

1929 German film directed by Hanns Schwarz

Melody of the Heart (1929) was filmed in Budapest, Potsdam, Babelsberg Studio and Neubabelsberg, 4 places named in its German Wikipedia’s Hintergrund section, in Germany, Hungary. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

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