Cui: 25 Preludes, Op. 64

Post-Romantic era refers to late-19th- and early-20th-century classical music that extends the lush harmonies, expansive forms, and emotive rhetoric of High Romanticism while pushing tonality and orchestration to their limits. It is characterized by chromatic saturation, extended tonal relationships, large orchestras (often with auxiliary instruments such as celesta, harps, and organ), and grand, often programmatic designs (tone poems, multi-movement symphonies, and large-scale operas). Composers frequently adopt leitmotivic writing, extreme dynamic ranges, and deeply personal, sometimes metaphysical subject matter. Historically it overlaps with the early stirrings of musical Modernism: while remaining fundamentally tonal, it explores ambiguous tonal centers, altered/chromatic mediants, and advanced chordal extensions (9ths, 11ths, 13ths), thereby creating a bridge between Romantic idioms and the innovations of the 20th century.