Sir Charles Mackerras

Operetta is a light, theatrical form of musical drama that blends spoken dialogue with tuneful, dance-inflected numbers and comic plots. It favors memorable melodies, witty wordplay, and a buoyant orchestral palette over the heavy dramatic weight of grand opera. Emerging in mid-19th-century Paris and quickly flourishing in Vienna and beyond, operetta draws on popular dance rhythms (especially the waltz and march), satirical or romantic storylines, and clear, lyrical vocal writing. It serves as a bridge between opera and modern musical theatre, balancing classical technique with popular appeal.

The Saint Petersburg school refers to interrelated circles of 19th-century Russian Western Classical composers centered in Saint Petersburg. Its core aim was to develop a distinctly Russian national style within Western art-music forms, blending European conservatory craft (symphony, opera, chamber music) with Russian-language declamation, folk-like melodic turns, Orthodox-tinged sonorities, and programmatic subjects drawn from Russian history and literature. In practice, the term often overlaps with the so‑called “Mighty Handful” (Balakirev’s circle) and their broader St. Petersburg milieu, where national-romantic aesthetics were pursued alongside vigorous debate with more academically oriented musicians.

The Classical period in Western art music (c. 1750–1820) is defined by clarity of form, balance of phrase, and transparent textures. Composers favored singable melodies, symmetrical four- and eight-bar phrases, and functional harmony that modulates to closely related keys. Hallmark forms such as the symphony, string quartet, sonata, and classical concerto were standardized, often using sonata form, theme-and-variations, minuet and trio, and rondo designs. Orchestras expanded beyond strings to include standardized pairs of woodwinds and horns, with trumpets and timpani for ceremonial weight, while the fortepiano gradually replaced the harpsichord. The style pivoted away from the dense counterpoint of the late Baroque toward a more galant, conversational musical rhetoric. It culminated in the Viennese masters—Haydn, Mozart, and the early Beethoven—whose works crystallized the era’s ideals and prepared the way for Romanticism.

A symphony is a large-scale composition for orchestra, typically cast in multiple movements that contrast in tempo, key, and character. In the Classical era, the most common layout was four movements: a fast opening movement (often in sonata form), a slow movement, a dance-like movement (minuet or later scherzo), and a fast finale. Over time, the symphony evolved from compact works of the mid-18th century into expansive, architecturally ambitious statements in the 19th and 20th centuries. Composers increasingly treated the symphony as a vehicle for thematic development, cyclical unity, and dramatic narrative—sometimes programmatic, sometimes abstract—using the full coloristic range of the modern orchestra. While rooted in Classical balance and clarity, symphonies incorporate a wide spectrum of harmonic languages and orchestral techniques. From Haydn’s wit and structural innovation to Beethoven’s heroic scope, Mahler’s cosmic breadth, and Shostakovich’s modern intensity, the symphony has remained a central pillar of Western concert music.

A serenade is a classical-period genre that originally denoted evening music performed outdoors, often offered to honor or woo someone. By the mid–late 18th century, it evolved into a multi-movement instrumental work closely related to the divertimento and cassation, typically lighter in character than a symphony and intended for social occasions. Serenades are tuneful, gracious, and often scored for small orchestra, wind ensemble, or strings, with movement types such as marches, minuets, and lyrical slow movements. Famous examples include Mozart’s Eine kleine Nachtmusik and the string serenades of Dvořák and Tchaikovsky.

Opera is a large-scale theatrical genre that combines music, drama, and visual spectacle, in which the story is primarily conveyed through singing accompanied by an orchestra. It unites solo voices, ensembles, and chorus with staging, costumes, and often dance to create a total artwork. Emerging in late Renaissance Italy and flourishing in the Baroque era, opera developed signature forms such as recitative (speech-like singing that advances the plot) and aria (lyrical numbers that explore character and emotion). Over the centuries it evolved diverse national styles—Italian bel canto, French grand opéra, German music drama—while continually experimenting with orchestration, harmony, narrative structure, and stagecraft.