He wrote an oratorio based on Swedenborg's vision of heaven in Balzac's S?aphita in which six people are admonished by the archangel Gabriel, while his lighter works include the comic operetta From One Day to the Next, whose libretto was written by his daughter Gertrud.  
His last instrumental work was a Phantasy for Violin with Piano Accompaniment, while his other late works include a string trio in one movement and a set of variations in G minor for band.  He wrote an oratorio based on Swedenborg's vision of heaven in Balzac's S?aphita in which six people are admonished by the archangel Gabriel, while his lighter works include the comic operetta From One Day to the Next, whose libretto was written by his daughter Gertrud.  One of his major works features a long duet that is interrupted after each verse by orchestral commentary and contains the solemn "lament of the wood dove."  That work is based on a poem by Jens Peter Jaconsen, and features King Waldemar and Tove, whose castle provides the name of the Gurrelieder.  He also wrote a Chamber Symphony in E major and a string sextet based on a poem by Richard Dehmel, Transfigured Night.  FTP, name this composer of Moses and Aron and Pierrot Lunaire.
His last instrumental work was a Phantasy for Violin with Piano Accompaniment, while his other late works include a string trio in one movement and a set of variations in G minor for band.  
Arnold Schoenberg