Charles-Valentin Alkan

An impromptu is a short Romantic-era character piece—most often for solo piano—designed to sound spontaneous and improvisatory. While the music gives the impression of free invention, it typically follows clear small forms (often ternary ABA or a rounded binary) and balances lyrical melody with ornamental figuration. Impromptus tend to feature cantabile right-hand lines, flowing arpeggiation, rich Romantic harmony, and flexible rubato, making them popular salon pieces and concert encores.

Romantic classical (Romantic-era) music is the 19th‑century phase of Western art music in which expression, individuality, and imagination came to the fore. Composers expanded the orchestra, embraced chromatic harmony and bold modulations, and favored long‑breathed, emotive melodies. Aligned with the wider Romantic movement in literature and the arts, it prized the subjective—love, nature, the supernatural, nationalism, and the sublime—often through programmatic narratives. New and transformed genres (the symphonic poem, grand opera, the art song/Lied, concert overtures) coexisted with reimagined Classical forms (symphony, sonata, concerto) that grew in scale and harmonic daring. From ca. 1800 through the early 20th century, Romantic music stretched from Beethoven’s heroic style and Schubert’s lyricism to Wagner’s leitmotivic dramas and Tchaikovsky’s symphonic ballet-infused language, culminating in late-Romantic gigantism and post-Romantic continuations.

Classical piano is the tradition of composing and performing music for the acoustic piano within the Western classical lineage. It emphasizes formal clarity, tonal harmony, contrapuntal writing, and expressive nuance across the full compass of the instrument. Its core repertoire ranges from Classical-era sonatas and variations to Romantic character pieces, études, dances, and 20th-century impressionistic and modernist works. Pianists exploit dynamics, articulation, pedaling, and touch to shape phrases, imitate orchestral textures, and project both intimate lyricism and large-scale drama.

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.