During the reign of Duke Galeazzo Maria Sforza (1444-76), Milan experienced an extraordinary musical era. In the 1470s, the Duke set out to form a ‘famous and worthy choir’, recruiting a ‘goodly number of singers from beyond the Alps and from various countries’. He soon assembled a musical ensemble that boasted some of the most celebrated musicians in the Franco-Flemish polyphony of the day, from Italy and beyond.