Kurt Julian Weill (March 2, 1900 – April 3, 1950) was a German (later American) 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, Gebrauchsmusik. He also wrote several works for the concert hall. He became a United States citizen on August 27, 1943.
Weill was born on March 2, 1900, the third of four children to Albert Weill (1867–1950) and Emma Weill (née Ackermann; 1872–1955). He grew up in a religious Jewish family in the "Sandvorstadt", the Jewish quarter in Dessau in Saxony, where his father was a cantor. …Read more on Wikipedia