24.03.2021, during a concert accompanying Synergy of Sound session at the Krzysztof Penderecki Music Academy in Krakow took place the premiere online emission of the new piece Over empty chairs (after Egon Schiele). In memoriam Andrzej Chłopecki and Krzysztof Droba. The piece was performed by Wojciech Kaszuba (piccolo trumpet) and Bartosz Gaudyn (trumpet).