One of the most famous Spanish plays of the 20th century, "Romance de lobos" (1908), written by R. M. del Valle Inclán, has been converted into an opera in 2017 by the composer Eduardo Soutullo and the librettist Arturo Reverter. The score has not yet been released, despite having won the Honorable Mention in the First Opera Composition Contest organized by "Ópera XXI" (Association of Opera Theaters and Festivals in Spain).

For the premiere of this opera in concert version (without staging) it is only necessary that some symphony orchestra include it in their concert season and hire four solo singers. MSG Music Publisher would let the scores for free
 

YOU MAY LISTEN TO THE FIRST SCENE (16 min.) IN THIS LINK (instrumental version without singers: horn 1 plays protagonist baritone part, etc): https://vimeo.com/343933351

You may download the musical score of the first scene (piano & voices) here:
https://bit.ly/3alqcho

Opera features: duration: 59 minutes (80 min If the 3 optional interludes are added) / Language of the text: Spanish

Tessitura of the four singers: Baritone 1: Do 3 - Mi 4 / Baritone 2: Sol 2 - Mi 4 / Soprano: Re 4 - La 5 / Tenor: Re 3 - La 4

Fell free to browse each aria in the index in the description of the video:
00:00 Obertura
02:48: EL CABALLERO...
etc

CONTACT: MSG Music Publisher

msg.ediciones@gmail.com

https://bit.ly/2xoZAO3

More info: 

https://en.wikipedia.org/wiki/Ram%C3%B3n_del_Valle-Incl%C3%A1n

https://en.wikipedia.org/wiki/Eduardo_Soutullo

http://eduardosoutullo.com/