High Quality Content by WIKIPEDIA articles! The Russian Symphony Concerts were a series of Russian classical music concerts hosted by timber magnate and musical philanthropist Mitrofan Belyayev in St. Petersburg as a forum for young Russian composers to have their orchestral works performed. While a number of works by these composers were performed, pieces written by composers of the previous generation such as Nikolai Rimsky-Korsakov and Mily Balakirev were also played there.