 The libretto originally specified for these roles one soprano (Ophélie), one mezzo-soprano (Gertrude), one tenor (Hamlet), and one baritone or bass (Claudius).Other plot changes, such as making Läerte less cynical and more positive towards Hamlet early on, not only simplified the story but heightened the tragedy of their duel in the Gravediggers Scene.Making Gertrude a co-conspirator alongside Claudius, enhanced the dramatic conflict between Hamlet and Gertrude when Hamlet attempts to coerce a confession from her in the Closet Scene.