From Wikipedia, the free encyclopedia Bronisław Kaper ([brɔniswaf ˈkapɛr], February 5, 1902 – April 26, 1983) was a Polish film composer who scored films and musical theater in Germany, France, and the USA. The American immigration authorities misspelled his name as Bronislau Kaper. He was also variously credited as Bronislaw Kaper, Bronislaw Kapper, Benjamin Kapper, and Edward Kane. Kaper is now perhaps best remembered as the composer of the jazz standards "On Green Dolphin Street" (lyrics by ...