Shostakovich: Sonata for Viola and Piano, op. 147 / Reger: Suite no. 1 for Solo Viola, op. 131d / Hindemith: Sonata for…

Historic classical performance (often aligned with the historically informed performance movement) is an approach to playing Western art music using the instruments, techniques, tunings, ensemble sizes, and stylistic conventions of the period in which the music was written. Rather than treating the score as a fixed, modern object, it treats it as a set of historically situated instructions, illuminated by treatises, original instruments, performance traditions, and the acoustics and rhetorical aims of past eras—from Medieval and Renaissance repertories through Baroque, Classical, and early Romantic music. The result emphasizes clarity of texture, speech‑like articulation, dance rhythms, improvised embellishment, and timbral colors native to gut strings, natural brass, wooden flutes, historical keyboards, and other period forces.

Neoclassicism in music is a 20th‑century movement that revived forms, genres, and aesthetics from the Baroque and Classical eras, but reframed them with modern harmony, rhythm, and orchestration. It emphasizes clarity, balance, objectivity, and contrapuntal craft, often rejecting late‑Romantic excess while retaining a tonal or modal center enriched by dissonance, bitonality, and crisp rhythmic drive. Typical hallmarks include neobaroque dance suites, neoclassical sonatas and concerti, chamber‑oriented scoring, clean textures, and a dry, anti‑rhetorical performance style.

Austro-German modernism is a current in early 20th‑century classical music centered in Vienna, Berlin, and other cultural hubs of the German‑speaking world. It is marked by the break with late‑Romantic tonality through chromatic saturation, atonality, and ultimately systematic twelve‑tone/serial procedures; a heightened, often expressionist intensity of gesture; concentrated motivic work; and refined attention to timbre (including Klangfarbenmelodie). While many composers retained or reimagined traditional forms, their harmonic language, rhythm, and orchestration pursued a radical new expressivity. Beyond its signature pitch techniques, the movement embraced new vocal practices (such as Sprechstimme), chamber ensembles of novel makeup, and an aesthetics that oscillated between ecstatic subjectivity and ascetic concentration. Its innovations set the groundwork for much of 20th‑ and 21st‑century concert music.