Bellini's masterworks such as Norma and I Puritani, have made Bellini one of the great Bel Canto composers and they are still peformed regularly today.
Norma was operatic superstar, Joan Sutherland's favourite role.
It is considered a challenge for any soprano requiring technically difficult phrasing and a wide range of expression. It remains a role by which many soprano's have been measured and many aspire to leave performing it until mid to late career.
Soprano's considered great Normas include Sutherland, Maria Callas and Montserrat Caballe.
The role of Norma's companion Adalgesa is considered a plum role for competent mezzos and among those who have excelled in the role to sing the famous duet "Mira o Norma" are Ebe Stignani (with Callas) and Marilyn Horne (with Joan Sutherland).