This study examines the emergence of harpsichord idiom between 1600 and 1800, treating idiom not as a fixed stylistic category but as a fluid interaction between instrument, notation, and aesthetic thought. By examining organ and lute traditions, Italian and French performance practices, and later Enlightenment aesthetic debates, the research traces how idiomatic features gradually moved from practical habits to notated and intentional compositional detail. Case studies from various composers illustrate a shift from generic keyboard writing toward instrument-specific composition. The study suggests that idiom should inform performance not as a restrictive rule set, but as a historically rooted framework that can support informed, yet creative interpretation. keywords: harpsichord, idiom, baroque, classical, instrumental idiom, performance practice, instrumental writing
Péter Muhari (Tue,) studied this question.