Was a painting, an opera with music by arthur sullivan, and a libretto by julian sturgis.

IVANHOE was a painting, an opera with music by Arthur Sullivan, and a libretto by Julian Sturgis.

IVANHOE was a historical novel by Sir Walter Scott. It was first published in 1820. It was subtitled A Romance. 

It was made into an opera entitled :
Ivanhoe: A Romantic Opera In Three Acts  
Libretto by Julian Stugis
Music by Arthur Sullivan

Aside from being adapted into an opera, the novel had an adaptation for movie and tv production.

The gregorian chant was a major cultural milestone in the middle ages. it was one of the first codified forms of music meant to be played as written, where previously it was difficult to mass-produce and disseminate any music. what's more, these chants were also some of the first examples of musical notation: the notes and bars of today's music sheets are a reflection of centuries of evolution beginning with these chants. it became official throughout the entirety of the catholic church, meaning that nearly all of europe followed this musical notation and styling.