The gilded, tiered interior of the Teatro San Carlo in Naples, the world's oldest continuously active opera house
Photo: Sony (Flickr) / Wikimedia Commons, Public Domain

Vocal / Staged

Associated eras: Baroque, Classical, Romantic, 20th Century / Modernist

Opera is theater told (almost) entirely through music: singers act out a drama on stage, accompanied by an orchestra, with the sung dialogue and music carrying the emotional weight that spoken lines would carry in a play. It emerged in Italy around 1600, right at the start of the Baroque era, as composers experimented with setting entire dramatic texts to music.

The building blocks

A few recurring elements show up across most operas:

  • The libretto ("little book") is the text - the words the singers sing, usually written by a separate author, the librettist.
  • An aria is a solo song, usually a moment where the plot pauses so a character can express an emotional state at length. These are opera's most famous excerpts, the parts that get performed on their own in concert.
  • Recitative is a speech-like, loosely sung style used to move the plot forward between arias.
  • Ensembles - duets, trios, quartets - let several characters sing at once, often each expressing something different, which no spoken play can do.
  • The chorus represents crowds: villagers, soldiers, courtiers.
  • An overture opens the evening, an instrumental prelude played before the curtain rises.

The voices

Opera singers are grouped by vocal range, and the types often come with typical roles. From highest to lowest: soprano (often the heroine), mezzo-soprano (rivals, mothers, and some famous seductresses, like Carmen), tenor (very often the hero or lover), baritone (villains, fathers, and complicated men), and bass (kings, priests, and authority figures). Opera singers project over a full orchestra without microphones - one reason their training takes years. Our guide to voice types explains the categories in more detail.

How opera developed

The first operas came out of a group of Florentine intellectuals trying to revive the sung drama of ancient Greece; Claudio Monteverdi's L'Orfeo (1607) is the earliest opera still regularly performed. The first public opera house opened in Venice in 1637, and opera quickly became a popular entertainment, not just a court luxury. In the late Baroque, Handel wrote dozens of Italian operas for London audiences, built around star singers and spectacular arias.

In the Classical era, Christoph Willibald Gluck pushed for simpler, more dramatic opera, and Mozart wrote some of the most perfect operas ever composed: The Marriage of Figaro (1786), Don Giovanni (1787), and The Magic Flute (1791), a German-language opera with spoken dialogue.

The early 19th century was the age of bel canto ("beautiful singing") - Rossini, Bellini, and Donizetti wrote operas showcasing dazzling vocal agility. By the Romantic era, opera had become a dominant cultural form across Europe, with distinct national traditions: Italian opera (Verdi's Rigoletto, La traviata, and Aida) built around vocal melody and drama; German opera (Wagner) pursuing enormous, continuous musical structures, culminating in the four-opera Ring cycle; and French opera, including Bizet's Carmen (1875). At the end of the century, the verismo ("realism") movement brought ordinary people and raw emotion to the stage, and Puccini became its most popular voice.

The 20th century kept opera evolving: Richard Strauss's Salome shocked audiences in 1905, Gershwin's Porgy and Bess (1935) brought jazz and blues to the opera house, Britten's Peter Grimes (1945) revived English opera, and Philip Glass and John Adams brought minimalism to the stage.

Seeing an opera today

Most opera houses show translated surtitles above the stage (or on seat-back screens), so you don't need to know the language. Many operas are also streamed or screened live in cinemas, which is an affordable way to try one. Our concert etiquette guide covers what to expect in the hall.

Where to start listening: Puccini's La bohème is one of the most accessible full operas for a first watch - short, tuneful, and heartbreaking. As a shorter first taste, look up "Nessun dorma" from his Turandot, the "Habanera" from Bizet's Carmen, or the "Queen of the Night" aria from Mozart's The Magic Flute.