About John Dankworth
Sir John Phillip William Dankworth was an English jazz composer, saxophonist, clarinettist and writer of film scores. With his wife, jazz singer Dame Cleo Laine, he was a music educator and also her music director. He had violin and piano lessons before settling eventually on the clarinet at the age of 16, after hearing a record by the Benny Goodman Quartet. By now, Cleo Laine's singing was a regular feature of Dankworth's recordings and public appearances.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.