Orthodox Celts
Artist with the following albums: "Green Roses", "Orthodox Celts", "A Moment Like The Longest Day", etc...

Orthodox Don kosaken
Artist with "Vater Unser" album

Orthodox Fuzz
Artist with "Ritual Volume" album

Orthodox Issachar
Artist with "He Created Everything" album

Orthodox Shrines of the Russian North
Artist with the following albums: "The Tikhvin Monastery (Disc 1)", "The Tikhvin Monastery (Disc 2)", "The Tikhvin Monastery"

Orthodox SIngers
Artist with the following albums: "Old Russian Orthodox Chants", "Contemporary Sacred Music from Estonia"

Orthodox Singers with Irina Arkhipova
Artist with "Irina Arkhipova: Sacred Chants for Soloist and Male Choir" album

Orthomol Immun junior
Artist with "Pass auf Dich auf!" album

Orthonorma
Artist with "Time 2 Wait" album

Orthoptera
Artist with the following albums: "", "Orthoptera České republiky"

Orthotonics
Artist with "Wake Up, You Must Remember (1-10) & Luminous Bipeds (11-21)" album