I don´t know if this video was posted already here, and in that case I apologize. If you saw the film "Amadeus", most probably remember the scene in which the agonizing Mozart dictates to Salieri his "Confutatis" (Part III of the Requiem). In the scene, Salieri writes the score and then pass the sheets to Mozart, who read the notes and can hear the voices and orchestra. The Confutatis is just an overwhelmingly beautiful piece of music. If you want to "see" what was Salieri writing, check this.
