Jan Stoeckart (3 November 1927, Amsterdam 13 January 2017) was a Dutch composer, conductor, trombonist and former radio producer, who often worked under various pseudonyms such as Willy Faust, Peter Milray, Julius Steffaro and Jack Trombey. In the UK he is best known for his composition Eye Level, the theme tune to the ITV series Van der Valk, which was a number one on the UK singles chart in 1973.