Rosa Ponselle, Maria Callas, and Joan Sutherland go head to head to head with Norma's famous aria Casta Diva. The selection is the first verse to the end of the coloratura section.
As a knowledgeable viewer pointed out, Sutherland sings the aria in the original key of G, while Ponselle and Callas transpose to F, as is common.
20 янв 2008