An international company of actors wants to perform in Salzburg - and Devilius wants to stop them. Amadeus knows the actors and prepares a musical number with them, using music he composed on the spur of the moment. Devilius takes drastic measures to prevent the performance. In the end, all of Salzburg cheers and Devilius plays an unexpected leading role on-stage. The Music: Opera "Bastien and Bastienne" K. 50; "Petit Marche Funebre in C" K. 453a; et al. Additional Content: Monti explains how children can research the composition of a real orchestra to the music of "A Little Serenade" on the Web site. There, children can experience the impact of shifting single members of the orchestra on the music and the relation of single instruments to the whole composition.