Marek Choloniewski is Polish composer and organizer (born 1953, in Krakow). He studied organ (with L.Werner), theory of music and composition (with B.Schaeffer) and electronic music (with J.Patkowski) at the Krakow Academy of Music. Since 2000 the director of the Electro–acoustic Music Studio at the Academy of Music in Kraków and since 2012 the director of Audiosphere Lab at the Intermedia Department at the Fine Arts Academy in Krakow. Choloniewski writes instrumental, electroacoustic, music for theater, film and radio, author of sound and video installations, audio–visual, outdoor and net projects. A world renown lecturer, composer, sound artist and live art performer. He has been giving concerts, workshops and lectures in Europe, North and South America as well as Asia.

He received Honorable Award of the Polish Composers Union, Award of the Ministry of Culture and National Heritage, as well as the Independent Project grant of the CEC ArtsLink in New York.
Since 2008 he is the Secretary, and since 2011 the President of the International Confederation of Electroacoustic Music (ICEM/CIME).

Marek Ostafil is art manager, producer, filmmaker, musician, organizer of the international cultural and art projects. Master degree in History of Art at the Jagiellonian University in Cracow. Selected for a sholarship of the International Center for Culture and Management (Salzburg, Austria). Invited to participate at the International Forum of Cultural and Landscape Heritage Florens 2010 and 2012 (Florence, Italy)

Produced documentary films for Discovery Channel, RAI, France 5, National Geographic as an Assistant Producer, Associate Producer as well as independent documentary films as a Producer. Author of the TV music shows.

Organizer, manager and producer of many international art projects and events. Co-organizer, manager of the cultural and educational projects: Audio Art Festival (Cracow, Poland), Festival avantgarde tirol (Schwaz/Rattenberg, Austria), Internationale Akademie für Neue Komposition und Audio-Art (Schwaz/Seefeld, Austria), International Workshop for New Music Cracow/Stuttgart (Cracow, Poland), Italian and German Contemporary Music Festival, Polish-American Festival of Electroacoustic Music (Cracow, Poland).

Worked with: prof. Bogusław Schaeffer, Arditti Quartett, Rohan de Saram, Janusz Olejniczak, Kaja Danczowska, Elżbieta Stefańska, Marek Chołoniewski, Horst Rickels, Edwin van der Heide, Christof Schlaeger and many others.

Since 1995 cooperated with Muzyka Centrum Art Society. Since 1996 cooperates with art society Avantgarde Tirol and in 2005 was elected Vice-President. Member of the Board of the Halina Czerny-Stefanska and Ludwik Stefanski Music Association. Former Vice-President of the Polish Fundraising Association (PSF). Manager of the three editions of the International Conference of Fundraising in Poland in 2011 – 2013.