Original: Verdi Operas. The Complete Vocal Scores. Version 2.0. Giuseppe Verdi. Voice sheet music. Verdi Operas. The Complete Vocal Scores. 2 CD-ROMs.
Traduction: Alzira, Acte I, Partie 1 - Da Gusman, su fragilité barca. The Complete Vocal scores. feuille de musique vocale. 2 CD-ROM.