Original tekst: Verdi Operas. The Complete Vocal Scores. Version 2.0. Giuseppe Verdi. Voice sheet music. Verdi Operas. The Complete Vocal Scores. 2 CD-ROMs.
Oversættelse: Verdi Operaer. , Act IV - The Fall af dagen. Oberto Act I, del 1 - Crimson lys amabil. Complete Vocal Scores. Voice noder.