The original Obikhod, the book of rites of the monastery of Volokolamsk, was composed about 1575.
The Obikhod style, and the 1909 edition, was predominantly used by the Russian Orthodox Church during the decades of Soviet Union rule in the 20th century.
Its adoption displaced other Russian styles, and also the traditions of Georgian Chant, Armenian Chant, and Carpatho-Rusyn Prostopinije[1] Pyotr Ilyich Tchaikovsky drew from the Obikhod style for his 1812 Overture, as did Nikolai Rimsky-Korsakov in his Russian Easter Festival Overture.
The pitch set used in these chants traditionally consists of four three-note groups.
If starting from G, the result is: G, A, B / C, D, E / F, G, A / B♭, C, D. Theoretically, more groups can be added either above or below, which has been done by some 20th-century Russian composers.