Alexander Dmitriyevich Kastalsky was a prominent Russian composer and folklorist, renowned for his significant contributions to the neo-Russian style and sacred music. Born in Moscow in 1856, Kastalsky began composing choral works in 1896 and quickly established himself as a leading figure in Russian sacred music. By 1917, he had created over 130 works, primarily for a cappella male choirs. A pupil of the esteemed Pyotr Ilyich Tchaikovsky, Kastalsky's compositions reflect a deep understanding of Russian musical traditions and a profound spiritual depth. His works, such as the album "Memory Eternal," continue to captivate audiences with their rich harmonies and emotional resonance, making him a pivotal figure in the world of choral music.