Anton Rubinstein and Alexander Adolfovich Winkler represent two generations of Russian Romanticism, and their sonatas for viola and piano reveal contrasting yet complementary approaches to chamber music and to the expressive potential of the viola.Anton Rubinstein (1829-1894), one of the founders of the Russian conservatory system and a towering figure as pianist, conductor, and composer, approached chamber music with a distinctly European Romantic sensibility. His Sonata for Viola and Piano is notable for it's lyrical breadth and dramatic contrasts. Rubinstein treats the viola not merely as an accompanying voice but as a fully expressive partner to the piano, exploiting it's warm, dark timbre and vocal qualities. The sonata's sweeping melodies, rich harmonic language, and expansive formal design reflect Rubinstein's admiration for composers such as Mendelssohn, Schumann, and Brahms. At the same time, moments of intense lyricism and emotional weight highlight his belief in music as a direct vehicle for personal expression.Alexander Adolfovich Winkler (1865-1935), a student of Sergei Taneyev and a representative of a later Russian school, brings a more refined and introspective character to his Sonata for Viola and Piano. Winkler's writing is marked by structural clarity, contrapuntal skill, and subtle harmonic color. His sonata emphasizes the viola's expressive nuance, often favoring intimate dialogue between the instruments rather than virtuosic display. The work blends Romantic warmth with Classical balance, revealing Winkler's interest in formal discipline and textural transparency.Luca Sanzo is a pupil of Bruno Giuranna. His concert career has taken him to the world's major concert halls, both as a soloist and in collaboration with leading musicians. He has collaborated as principal viola soloist with various orchestras, including those of the Teatro dell'Opera di Roma, the Teatro Lirico di Cagliari and Early Music orchestra Concerto Italiano. He teaches viola at the Conservatorio di S. Cecilia in Rome. He has recorded for Nuova Era, Bottega Discantica, BMG Ricordi, Opus 111, Tactus, Edi Pan, Stradivarius, Naïve, Chandos and Naxos. Italian pianist Maurizio Paciariello, schooled by Aldo Ciccolini and Paul Badura-Skoda and Prize winner of the ARD Competition, is a champion of rare repertoire and specialist on period instruments.