Mouvement (- vor der Erstarrung); "...zwei Gefühle...", Musik mit Leonardo; Consolation I; Consolation II

Musique concrète instrumentale is a compositional approach that transfers the ideas of musique concrète to the realm of purely acoustic instruments. Instead of manipulating recorded sound objects on tape or digitally, composers write for traditional instruments played with unconventional, extended techniques so that the instruments produce "concrete" sound-objects: breaths, frictions, scratches, resonances, and mechanical noises. Pitch and regular meter are de-centered in favor of the morphology of sounds—how they begin, sustain, and decay; their grain, spectrum, and energy; and the dramaturgy created by their transformation over time. The result is a highly tactile, timbre-driven music that treats the instrument as a source of material rather than as a vehicle for themes or harmonic progressions.

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.