The beautiful aria from Vincenzo Bellinis Norma: Casta Diva;
Piano Arrangement ©2016 by Matthias Dobler
The first few bars are partly from the Overture from "Norma".

Norma is a tragedia lirica or opera in two acts by Vincenzo Bellini with libretto by Felice Romani after Norma, ou L'infanticide (Norma, or The Infanticide) by Alexandre Soumet. It was first produced at La Scala in Milan on 26 December 1831.

The opera is regarded as a leading example of the bel canto genre and a major soprano aria, Casta diva, in act 1, is one of the most famous of the nineteenth century. Some notable Normas of the post-war period were Maria Callas, Joan Sutherland, and Montserrat Caballé.

Casta Diva (V. Bellini/Norma) - Piano by Matthias Dobler

Matthias Dobler