Alexei Ogolevets

Alexei Ogolevets (Russian: Алексей Степановий Оголевец, Alexei Stepanovich Ogolevets) Soviet musicologist, one of the microtonal pioneers, put forward novel temperament principles, created early EDO-17 and EDO-29 musical instruments. Developed theoretical problems of harmonic thinking, tonal systems, and modes.

Put forward EDO-29 piano keyboard, based on the common-practice EDO-12 piano keyboard. This layout is presently known and used in pedagogic practice under the name «Ogolevets-Brainin keyboard», implemented on the Web browser-based software «Specialized 29-EDO Keyboards» by Sergey A Kryukov in collaboration with Valeri Brainin who fixed some problems in the original Ogolevets layout.