Evita. The principal characters are Eva, Che, and Peron. The ten-person ensemble (5 male, 5 female) can easily fill the roles of Magaldi, Eva's family, Peron's mistress, Officers, Aristocrats, workers, since they're not on stage at the same time. For example, the nightclub in Junin only requires Eva, Magaldi, and her family (mother, brother, 3 sisters). "Buenos Aires" only requires Eva since she's the only one who sings in it though Che does comment in the middle. The charity concert only requires Magaldi, Eva, Peron, Che, and the tango dancers Mario & Margarita. And so on. The only two big scenes that require a huge crowd are "A New Argentina" and "On the Balcony of the Casa Rosada/Don't Cry for Me Argentina," but both scenes only require Eva, Peron, Che, and two heavies. The remaining 5 women and 3 men can easily be the workers.
Salve, Regina, Mater misericordiae
Vita, dulcedo, et spes nostra
Salve, Salve Regina
Ad te clamamus exsules filii Eva
Ad te suspiramus, gementes et flentes
O clemens O pia