which musical opera or drama, Singspiel or Fedora, is a most notable work from Giordano?
Fedora (opera): Fedora is an opera in three acts by Umberto Giordano to an Italian libretto by Arturo Colautti, based on the play "Fédora" by Victorien Sardou. Singspiel: A Singspiel (] ; plural: Singspiele; literally "sing-play") is a form of German-language music drama, now regarded as a genre of opera.
i don't know