Final answer:
In Rossini's operas, excitement is commonly built through the use of crescendos and the repetition of increasing musical phrases, often leading to a climax that captivates the audience. The melodramatic influence of the 19th-century theatre also contributed to his operatic style.
Step-by-step explanation:
In Rossini's operas, a feature that commonly occurs to build excitement is the crescendo. This technique involves the music gradually increasing in volume, which helps to enhance the dramatic tension and engage the audience more deeply with the performance.
Rossini was known for using this dynamic change to great effect, frequently leading up to the climax of an aria or ensemble piece, thus creating an exhilarating musical experience that captivated the listeners.
Another characteristic method Rossini employed was the use of repeated musical phrases that get faster and louder, with each repetition adding to the exhilaration and anticipation. This is often heard in his famous overtures and provides a sense of urgency and buildup that is very characteristic of his operatic style.
Moreover, the use of melodrama in the 19th-century theatre, where music played a crucial role in heightening emotions, influenced Rossini's approach to composing for operas as well.
The grandeur and the spectacle of the performances, supported by an orchestra often seated in the orchestra pit below the stage, were essential for delivering the maximum emotional impact to the audience.