"Kurt Julian Weill (March 2, 1900 – April 3, 1950) was a German Jewish composer, active from the 1920s in his native country, and in his later years in the United States. He was a leading composer for the stage who was best known for his fruitful collaborations with Bertolt Brecht. With Brecht, he developed productions such as his best-known work The Threepenny Opera, which included the ballad "Mack the Knife". Weill held the ideal of writing music that served a socially useful purpose. He also wrote several works for the concert hall. He became a United States citizen on August 27, 1943." - (en.wikipedia.org 01.02.2020)
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