Bomarzo (opera)

Bomarzo is an opera in two acts by the Argentinian composer Alberto Ginastera, his Opus 34. He set a Spanish libretto by Manuel Mujica Laínez, based on his 1962 novel about the 16th-century Italian eccentric Pier Francesco Orsini.

The opera makes use of twelve-tone techniques, quarter tones – primarily in the harp parts – and controlled stochastic textures of non-synchronous repetitions of motifs and cells. Published by Boosey & Hawkes, New York, the work's two acts encompass a prelude and 15 scenes. Pola Suarez Urtubey has published an analysis of the opera with an outline of the dramatic structure.