MEGA RIFF Tomasz Olszewski

85.52.Z - Non-school forms of artistic education

85.59.B - Courses and training for acquiring knowledge, skills, and professional qualifications in non-school forms

85.59.D - Other non-school forms of education, not classified elsewhere

90.11.Z - Literary activities and activities related to composing music

90.20.C - Activities related to the staging of artistic performances