This combination ought to make people sit up and take notice: conductor George Cleve and pianist Peter Serkin performing Brahms’ First Piano Concerto. With Symphony Silicon Valley, the premier professional orchestra of the South Bay and a descendant of the San Jose Symphony, of which Cleve was long-time music director. Along with the Brahms comes Tchaikovsky’s “Pathétique,” still the most nerve-bending symphony in the repertoire.