Bianca e Falliero was commissioned by La Scala, Milan, for its prestigious Carnival season of 1819-20, enjoying a run of no fewer than 39 performances. Rossini responded with a score the virtuosity and expressivity of which outdid even his Neapolitan works. Prevailing tastes at La Scala meant that ensembles predominated over arias but behind the conventional dictates Rossini lavished the utmost care on his work, fashioning an opera full of dramatic coloratura and powerful theatrical craft and notable for its rich and often surprising harmony.