What is "zigor"

Zigor: ( Basque: Punishment), is the first opera in four acts written by Francisco Escudero in 1962, commissioned by the Bilbao Association of Friends of the Opera (Asociación Bilbaina de Amigos de la Ópera, ABAO.) Its libretto was written in Basque by Manuel Lekuona and Escudero. It is based on a story by José Zinkunegi.

Zigor first performance was an abridged concert version on 4 October 1967 in the Coliseo Albia in Bilbao. One year later, on 6 June 1968, it was presented for the first time in the Zarzuela Theatre in Madrid, with great success among the public and critics.