Violinist and music educator, she graduated from Warsaw’s Fryderyk Chopin Music Academy in the class of Krzysztof Bąkowski. Founding member of the Kwartludium ensemble, soloist and chamber musician. She has performed and premiered numerous works by contemporary Polish and foreign composers such as Magdalena Długosz, Krzysztof Knittel, Wojciech Ziemowit Zych, Aleksandra Gryka, Lawrence Moss, Salvatore Sciarrino, Bernard Cavanna, Toshio Hosokawa, Aleksander Lasoń, and others.

She has given performances at such festivals as Warsaw Autumn (2003–7), Premieres Festival, jaZZ & Beyond improvised music festival in Katowice, Musical Seismograph III, Laboratory of Contemporary Music, Flying Academy of Contemporary Music, New Sounds of Gdańsk, Ad Libitum, Audio Art, and many others. For several years she has been active in the field of improvised music. As part of the “plain music” project she performed with musicians such as John Edwards, Le Quaninh, John Tilbury, Axel Dörner, Thomas Lahn, and DJ Lenar.

She has participated in Polish–Japanese workshops and concerts organised by the Adam Mickiewicz Institute in Tokyo and Osaka. She is a beneficiary of the Young Poland scholarship programme offered by the Polish Ministry of Culture. For 15 years she has been actively involved in music education. She is the author of the Online Collection of Exercises in Contemporary Music, developed with a grant from the City of Warsaw. She has also created her own original syllabus of music therapy classes. For many years she has conducted artistic workshops for children and teenagers at the Adam Mickiewicz Museum of Literature in Warsaw, Artists’ House in Wigry (Poland), Theatre Institute, and Little Warsaw Autumn. For her workshops, Dagna Sadkowska draws on many years’ experience both with schoolchildren and on the concert stage as a soloist and chamber musician. She is the author and cocreator of the Musical Images project.