Melody of the Heart (German: Melodie des Herzens) is a 1929 German musical film directed by Hanns Schwarz and starring Dita Parlo, Willy Fritsch and Gerő Mály.

[1] Ufa had recently made a deal with the Klangfilm syndicate (consisting of Siemens & Halske, AEG, and Polyphon-Werke AG (who sold Polydor records) to license the Tri-Ergon sound film system, under the name 'Ufa-Klang'.

[2][3] A previous attempt in 1925 by Ufa to use an earlier version of the same system, at the time owned by Klangfilm's former competitor, Tobis, had ended in failure.

[6] It was released in four different languages: German, English, French and Hungarian.

[7] Such multiple-language versions, which had been pioneered by British International Pictures, were popular in Europe until dubbing became more widespread.