Andr� Previn - Gershwin: Rhapsody in Blue, An American in Paris, Concerto (2LP) As a luminary in the worlds of classical music, jazz and show business, Andr� Previn is the ideal interpreter of these ground-breaking works by George Gershwin. Previn, here both pianist and conductor, spent eleven years in charge of the London Symphony Orchestra, and his close relationship with it's players bears fruit in sumptuous performances that of with a captivating swing.