Sorabji, Kaikhosru Shapurji

A nocturne is a short, lyrical character piece that evokes the atmosphere of night, most commonly written for solo piano. It features a cantabile, song-like melody that floats over a gentle, arpeggiated or broken-chord accompaniment, inviting rubato and nuanced pedaling. Originating with the Irish composer John Field and canonized by Frédéric Chopin, nocturnes typically explore intimate emotions—tenderness, melancholy, and reverie—through expressive harmony, chromatic inflections, and spacious pacing. While the piano nocturne is the norm, later composers also wrote orchestral and vocal "nocturnes" that broaden the palette while retaining the essential nocturnal mood.

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.

Western classical is the notated art-music tradition that developed in Europe from medieval Christian chant into the large-scale secular and sacred forms of the Baroque, Classical, Romantic, and modern eras. It is characterized by staff notation, evolving systems of modality and tonality, and forms such as symphony, sonata, concerto, mass, opera, and chamber music. Across its history, Western classical established an extensive theory of harmony and counterpoint, refined orchestration across strings, winds, brass, and percussion, and cultivated performance practices from a cappella chant to full symphonic and operatic forces. Its repertoire, pedagogy, and institutions (conservatories, orchestras, opera houses) made it a global reference point for compositional craft and instrumental technique.