Brahms: Piano Quartet No. 3 in C Minor, Op. 60

Historic string quartet refers to early recorded and documented performance practice of string quartet playing—roughly from the dawn of commercial recording through the mid‑20th century. It captures ensembles whose style preserves 19th‑century traditions: a leader‑forward balance, flexible rubato, expressive portamento slides, selective (often non‑continuous) vibrato, and intimate chamber acoustics. These characteristics are heard on acoustic and early electrical discs and in concert accounts of trailblazing quartets that bridged the late‑Romantic ethos and the modern recording age. Rather than a repertoire category, it is a performance‑practice lens on canonical works (Haydn, Mozart, Beethoven, Schubert, Brahms, etc.) as realized by seminal quartets whose recordings and reviews shaped how later groups approached phrasing, articulation, seating, and ensemble blend.