Il Sant'Alessio

Opera-ballet (opéra-ballet) is a French Baroque stage genre that blends sung opera with extensive, self-contained dance episodes. Typically organized as a prologue followed by several independent entrées linked by a loose theme, it favors variety, spectacle, and graceful movement over the strict tragic unity of earlier French opera. Emerging in Paris at the close of the 17th century, the form cultivated elegant divertissements, richly orchestrated choruses, and expressive French recitative, all designed to showcase star singers and dancers. Its subjects range from pastoral and mythological to exotic and festive, creating a refined, courtly entertainment that balances dramatic singing with choreographic display.

Tragédie en musique (also called tragédie lyrique) is a French Baroque operatic genre forged at the court of Louis XIV by composer Jean-Baptiste Lully and librettist Philippe Quinault. It blends a solemn, heroic or mythological subject with a distinctive five-act plan plus a ceremonial prologue, abundant choral writing, instrumental interludes, and elaborate danced divertissements. The music features the French overture (majestically dotted rhythms), supple French récitatif tailored to the nuances of the language, brief airs rather than showpiece arias, and rich orchestral colors shaped by a five-part string band and basso continuo. Its overall aesthetic is one of noble declamation, dramatic clarity, and courtly spectacle—where text, dance, chorus, and stagecraft combine into a unified theatrical experience.

Classical music is the notated art-music tradition of Europe and its global descendants, characterized by durable forms, carefully codified harmony and counterpoint, and a literate score-based practice. The term “classical” can refer broadly to the entire Western art-music lineage from the Medieval era to today, not just the Classical period (c. 1750s–1820s). It privileges long-form structures (such as symphonies, sonatas, concertos, masses, and operas), functional or modal harmony, thematic development, and timbral nuance across ensembles ranging from solo instruments to full orchestras and choirs. Across centuries, the style evolved from chant and modal polyphony to tonal harmony, and later to post-tonal idioms, while maintaining a shared emphasis on written notation, performance practice, and craft.