Conceptual project which links music, art, ethnography, linguistics and cultural and human heritage of the Marcin Oles. Although conceptual in its nature and effects, it is primarily a deeply humanitarian artistic project. He refers, inter alia, to the concept of time passing by the Polish artist, artist and conceptual artist, Roman Opałka. However, while the work of Opałka was focused on passing time as such, the Lost Languages project puts emphasis on the moment of passing of culture. In its symbolic expression, the language that is a carrier of culture dies with it, often leaving behind even the fossil of human presence.