Zanaida is a three-act opera seria with music by Johann Christian Bach and libretto based on Metastasio's Siface, re di Numidia by Giovanni Gualberto Bottarelli who relocated the action from North Africa to Persia. It debuted at the His Majesty's Theatre, London, on 7 May 1763. [1] [2] [3] [4] [5]
If, as Burney stated, Bach was initially disappointed by the mediocre operatic standards in the city, his future in London was assured by the triumph of his first complete stage work, Orione (February 1763; the première was attended by King George III and Queen Charlotte), followed by the less successful Zanaida (May 1763), and by his appointment as music master to the queen. It was now unnecessary for him to return to the claustrophobic and restrictive atmosphere of Milan."