Original: Wagner Opera Vocal Scores. Version 2.0. Richard Wagner. Voice sheet music. Wagner Opera Vocal Scores. Version 2.0. 2 CD-ROMs. 1813-1883.
Oversettelse: Wagner Opera Klavierauszüge. Lohengrin, Act I, del 1 - Lonely i grumsete dager. Versjon 2.0. Tale noter. Wagner Opera Klavierauszüge.