The season opens with two works that take us to the pinnacle of chamber music in a pairing of Brahms’s Piano Quintet in F minor, Op. 34 with that of his champion, and originator of the new genre, Robert Schumann’s breakthrough Piano Quintet. Combining the piano and the string quartet had never been tried, but in the space of only a few weeks in 1842, Schumann wrote the legendary piece that influenced countless followers. Both quintets are on the short list of masterworks—symphonic in scale, potent, flashy, and bursting with harmonic and melodic opulence and rhythmic variety. Other common denominators: A sense of inspiration is embedded in each, as is a sense of the ever-present Clara, to whom Schumann’s work is dedicated. These genre-bending works alternate between quasi-symphonic and more properly chamber-like elements to keep you captivated from start to finish…as will the all-star cast of performers.