The American impression of Russian folk music is primarily based on the repertoire of such "official" ensembles as the Red Army Chorus. The songs performed by these groups are usually of recent vintage ("Kalinka" or "Moscow Nights" come to mind), and if the repertoire does include traditional tunes like "Volga Boatmen" they are presented in a highly arranged form determined by the taste of general consumers of culture. More often than not, the result bears little similarity to the sound of traditional songs in their authentic setting.