Adagio from Mozart's Serenade No. 10 for Winds, 'Gran Partita'. Amadeus. LSO Wind Ensemble.

F. Murray Abraham plays Salieri in a short extract from the film 'Amadeus'.
The music on the movie soundtrack is by Neville Marriner and The Academy of St Martin-in-the-Fields.
They do a fine job, but of course there's no video of them playing.
Instead, I've used the sound and video of a performance by the LSO Wind Ensemble.