What roles do the orchestra and conductor have during an opera?

In opera, which is a complex marriage of music and drama, the orchestra and conductor play essential roles in coordinating the performance.

The Role of the Orchestra

The orchestra serves as the instrumental ensemble that provides the musical accompaniment for the staged drama. Housed in a "pit"—a space often located below the stage level—the orchestra performs the overtures, interludes, and the continuous or sectional musical score that supports and intensifies the lyrics and action. By providing this instrumental foundation, the orchestra helps create a greater emotional impact than the drama could achieve on its own.1

The Role of the Conductor

The conductor is responsible for the musical execution of the opera, acting as a vital link between the composer, the performers, and the audience. Their primary duties include:23
* Coordination: The conductor manages the complex task of synchronizing the singers, chorus, dancers, and instrumentalists.1
* Communication: Using hand signals or a baton, they indicate tempi, entrances, dynamic accents, and the shaping of phrases to ensure a unified performance.23
* Interpretation: The conductor works extensively with the musical staff and performers to prepare the production, ensuring the artistic vision is realized.13

By using a full score, the conductor maintains oversight of all musical parts, guiding the ensemble to ensure the music and drama remain in balance.43