In the years following the First World War there was an increased demand for entertainment, as well as a second big wave of returning emigrants from the Great Depression. Many of them decided to take up music as their profession, bringing to Bulgaria some experience and repertoire of American music. Those were years of increased industrialization and urbanization for Bulgaria, which also stimulated the growth of the entertainment industry. [3] The first big jazz formations appeared at a time when public houses flourished and silent cinema provided work for orchestras. [2] Jazz spread further with the import of notated western jazz music and records. [2] There were several active jazz orchestras, performing mostly swing music, such as “Jazz Ovcharov” and “The Optimists”. [4]

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