Sergey Lebedev (Olorulus) is a musicologist living in Moscow and teaching at the Tchaikovsky National Conservatory. He received a Ph.D. in Musicology from the Сonservatory in 1988. His thesis is entitled Modal Harmony Problems in Early Renaissance Music (academic advisor Prof.Dr. Yuri Kholopov). He participated as a Humboldt fellow in the Lexicon musicum Latinum project at the Bavarian Academy of Sciences in 1990-92, was a University of Vienna Guest Professor in 1997-8, and has been a member of Editorial Commitee of the international project Thesaurus Musicarum Latinarum since 1992. Author of several books, including a critical edition of Carthusian treatises on music (15th century), FinaleBook for Russians, Musica Latina anthology (collection of Latin texts related to music with Russian translation and comments), and a bilingual (Latin / Russian) new edition of Boethius' Institutio musica (2012, with commentary and studies), over 200 articles in the Great Russian Encyclopedia, and other encyclopedic and scholarly articles (in Russian, German, Bulgarian).
