Danny Elfman is known to millions for his scores for over 100 movies, including many collaborations with the director Tim Burton, not to mention his inimitable title music for The Simpsons. This summer he released a new album on Sony Classical containing his Violin Concerto and Piano Quartet. The concerto, written for and played by Sandy Cameron, joined by the Royal Scottish National Orchestra conducted by John Mauceri, was the subject of a conversation Gramophone's James Jolly had with Elfman. But they started by talking about the emergence of the specialist film composer in the past 50 or so years.