It’s not every day to find a 23-years old first trumpet of a great symphony orchestra. Orchestra Sinfonica di Milano does. His name is Alessandro Rosi. He graduated from the Conservatory at the age of 15 with honors, and nowadays he’s a first trumpet with a sound and expressiveness to envy. For the first time Rosi gets up from the music stand of the orchestra and becomes a soloist, in Haydn's Concerto for trumpet and orchestra in E-flat major, alongside a conductor he knows very well, Kolja Blacher, a musician of rare quality who has a lasting relationship with the Orchestra, who does justice to his father Boris on the stage of Largo Mahler, proposing one of his warhorses: Variations on a Paganini's Theme.