Schubert, who died when he was only 31, never lived to hear most of his music played outside the informal gatherings in the homes of friends and colleagues known as Schubertiades, usually with the composer at the piano. To celebrate his birthday, January 31, the Pianoforte Foundation will host a two-day festival dedicated to his music–two separate six-hour programs in its small recital space and, across the hall, a makeshift cafe serving Viennese coffee and desserts. Among the Saturday performers are violinist Rachel Barton Pine (the Rondo in B Minor, D. 895, for violin and piano), violinist David Yonan (the breathtaking fantasy for violin and piano, D. 934), and pianist Alexander Djordevic and his violist brother, Mark, both on the faculty of the Merit School of Music (the moving Arpeggione Sonata). Other works on the program include the Impromptus D. 899, Moments Musicaux, and the song cycle Die Schone Mullerin, sung by baritone Ryan de Ryke; the other performers are Amy Dissayanake, Joel Schoenhals, Alex Komarenko, Micha Yui, and Eugenia Cheng. Visit for more. See also Sunday. a 3 PM, Pianoforte Chicago, Fine Arts Building, 410 S. Michigan, suite 825, 312-291-0000. F