The Museum of Musical Instruments of Milan, housed in the rooms of the Sforza Castle, exhibits a rich and varied collection of musical instruments from the fifteenth century B.C. to the twentieth century. The museum was founded in 1958 thanks to the purchase, by the municipal administration of that time, of the collection of instruments that belonged to the Cremasque master Natale Gallini, who was joined to some small nuclei already belonging to the municipality. Initially the instruments were placed in Palazzo Morando, seat of the Museum of Milan, but the seat soon turned out to be insufficient for the great collection, enlarged again in 1963 by the master Gallini, which was then moved permanently to the first floor of the fortress in the Castello Sforzesco. Inside the Museum there is also a spinet that is supposed to have been played by Mozart in one of the Milanese salons he frequented.