Pictures at an Exhibition; Night on the Bare Mountain

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.

A symphonic poem (also called a tone poem) is a single-movement orchestral work that conveys an extra-musical narrative, image, or idea through purely instrumental means. Rather than following traditional multi-movement symphonic forms, it uses flexible structures—often rhapsodic or episodic—to mirror a story, painting, landscape, poem, or philosophical concept. Rooted in Romantic aesthetics, the symphonic poem emphasizes vivid orchestration, thematic transformation, and striking harmonic color to achieve narrative coherence. It commonly deploys leitmotif-like themes that evolve as the program progresses, creating an arc that feels cinematic long before the advent of film scoring.

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.