Monotonic scale phrase is marked by a descending glissando. Monotonic passages are also used in art music for stylistic effect. In Schubert's "Death and the Maiden", the character of Death generally employs monotonic recitation, described by one scholar as depicting "an inanimate being incapable of the lyricism of the living." In "La gazza ladra" (1817), Rossini represents Ninetta's simplicity and innocence with an almost monotone declamation at "A mio nome deh consegna questo anello", whereas in the Wolf's Glen scene of "Der Freischütz" (1821), Weber characterizes the powers of evil by having the invisible spirits sing in monotone, and denies song entirely
La forza del destino (1867). Following these productions, Verdi made further, more extensive revisions to the opera with additions to the libretto by Antonio Ghislanzoni. This version, which premiered at La Scala, Milan, on 27 February 1869, has become the standard performance version. The most important changes were a new overture (replacing a brief prelude); the addition of a final scene to Act 3, following the duel between Carlo and Alvaro; and a new ending, in which Alvaro remains alive, instead of throwing himself off a cliff to his death. The opera in this version is frequently performed in the world's opera houses today.