Organist, composer, conductor, teacher and organologist. He graduated with honours in 1998 from the Chopin University of Music in Warsaw and in 2002 from the Schola Cantorum Basiliensis. He is a finalist and prizewinner of many international organ competitions in Poland, Belgium and Denmark. Szadejko has taken part in over 30 organ, harpsichord and pianoforte master classes and interpretation courses around Europe. Since 2006, he has been teaching organ and basso continuo in the Gdańsk Music Academy. He is a lecturer, creator of masterclasses and workshops in Poland, Germany, Finland and USA. In 2021, he became Professor of Arts. A scholarship holder of many Polish and European institutions. Since 1994, Szadejko has performed many concerts in Poland, most of the European countries and USA as a soloist, chamber musician and conductor. He is a leader, advisor and organ expert in many projects of historical and modern organs in Poland and Lithuania. Leader of Goldberg Baroque Ensemble. He has released 30 CDs for Polish and German labels that received multiple nominations for Fryderyk and Opus Klassik awards. A manager and artistic director of many musical events in Gdańsk and Warsaw: i.e. Concerts for Gdańsk residents, Pomerania 2008 – international meetings for organbuilders, GdO Tagung 2018 – International Meeting for Organ Lovers, ORGANy PLUS+® festival, MONIUSZKO_150, Pucklitz (2023).
