Ivan Dvoretsky (mid-19th c.)
DVORETSKY, I. S. (dates and place of birth and death unknown) — judging from his few known sacred works, Dvoretsky composed in the middle of the 19th century, when the ideas of A. F. Lvov concerning “free or unsymmetrical rhythm” became established in practice. Dvoretsky’s setting of “Svete tihiy” (“Gladsome Light”), the central hymn of Orithodox Vespers, has become a fixture in the repertoire of Russian church choirs.