Résumé : Moscow Conceptualism is usually defined as a final ‘heroic’ project of Russian 20th century transgressive art which suggestively reflected Soviet mythology by criticizing and stёbbing its very aesthetic and iconographic foundations. The essay narrates some of the major sonoric events related to the early history of Moscow Conceptualism. It proceeds from the early days of the movement associated with the names of Ilia Kabakov and Andrei Monastyrsky to the later events that included some radical musical sound performances led by Sergey Letov. The text also draws on several related subjects such as sound poetry, John Cage’s historical visit to St Petersburg where he met, among others, Sergey Kuriokhin, and musical contributions by the somewhat less known Russian conceptualist composer Yuri Khanon.