Final answer:
A Romantic Opera is typically from the Romantic era, mainly during the 19th century, where the music reflected deep emotion and individualism, with some composers extending the style into the 20th century.
Step-by-step explanation:
If we are referring to a Romantic Opera, it was likely written during the Romantic era, which predominantly covers the 19th century, although some composers continued to write in the Romantic style into the 20th century. The general time frame for the Romantic music period is approximately from 1780 to 1910. This was a time when composers like Brahms, Tchaikovsky, Schumann, Verdi, and Wagner created works with an emphasis on emotion, individualism, and a prevailing interest in nature and the past. The Romantic era followed the Classical period, which was characterized by a more structured and formal approach to composition.
Composers in the Romantic period sought to express a greater range of emotions and dramatic intensity within their music, often utilizing larger orchestras and more elaborate harmonic progressions. As the 19th century came to a close, there was a shift towards new musical languages, leading into the post-Romantic era where nationalistic music became more prominent and composers like Mahler and Strauss pushed the boundaries of Romantic musical techniques.