The combination of Herbert von Karajan and the revered Romanian pianist Clara Haskil (1895-1960) was an ideal partnership. Karajan had an extraordinary rapport with her, describing her career as 'a long and often sorrowful march to glory' due to Haskil's well documented ill-health. Since she and Karajan were contracted to different companies, they never recorded together which makes this live Salzburg performance to mark Mozart's bicentenary in 1956 especially valuable. Haskil, notoriously self-critical wrote: "The concert tour with Karajan was unique and unforgettable." Karajan's reading of Mozart's Symphony No. 39 is characteristically fleet-footed with great tension, a rare example of a live recording featuring the Philharmonia Orchestra and the conductor in concert together.