Zarzuela (comedia lirica) in one act and four cuadros by Jose Serrano, libretto by Federico Romero Sarachaga and Guillermo Fernandez-Shaw Iturralde, premiered at the Teatro Lirico, Valencia, 17 November 1916 and at the Teatro de la Zarzuela, Madrid, 1 March 1918: https://es.wikipedia.org/wiki/La_canci%C3%B3n_del_olvido . A staged work, so in scope; findopera already holds two other Serrano zarzuelas (La dolorosa 1430, Los claveles 1431) but not this one. Created to file the 1963 Hispavox recording under Pablo Sorozabal.