|Genre Categories||Duets; For 2 voices, piano; For voices with keyboard; Scores featuring the voice; Scores featuring the soprano voice; Scores featuring the alto voice; Scores featuring the piano; French language|
|Work Title||2 duos|
|Opus/Catalogue NumberOp./Cat. No.||Op.30|
|I-Catalogue NumberI-Cat. No.||ICW 11|
|Year/Date of CompositionY/D of Comp.||1876|
|Librettist||Victor Hugo (1802-1885)|
|Composer Time PeriodComp. Period||Romantic|
|Instrumentation||2 Voices (soprano and alto) and piano|
*Recmusic.org identifies as Unidentified/unknown/anonymous, not as known to be by Widor.
See eg BNF copy with Op.40 and Op."52"(?).