Bravo maestro

Bravo maestro is a 1978 Yugoslavian drama film directed by Rajko Grlić. It was entered into the 1978 Cannes Film Festival.
Plot.
Vitomir Bezjak graduated from the Academy of Music in Zagreb near the top of his class. After graduation, he lives a bohemian lifestyle, working on his compositions while unsuccessfully looking for a source of income. After his girlfriend leaves him, he reluctantly takes up a job as a piano teacher. He falls in love and marries a rich widow whose son he has been teaching. After her father introduces him to a number of influential people, Bezjak's life dramatically changes: he becomes a household name and starts to appear in various meetings and events, gradually gaining political influence. As he drifts away from the musical world, it becomes apparent he is no longer the talented young man he used to be. When his long-awaited major orchestral work is performed for the first time, he gets accused of plagiarism, and a scandal erupts.