Alexandr Dmitriyevich Kastalsky is primarily known for his large output of Russian sacred music. He was instrumental in the revival and further evolution of music in that genre, composing many hymns and other religious works, many of them written for use in Russian Orthodox Church service. Kastalsky typically wrote for a cappella male choir and was one of the leading figures in Russian sacred music from the 1890s until the Bolshevik Revolution, after which that genre of music was viewed suspiciously by Soviet government officials. While Kastalsky is not a household name to mos...