Krzysztof Ptak Sound

59.12.Z - Post-production activities related to films, video recordings, and television programs

59.20.Z - Sound recording and music publishing activities

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

85.69.Z - Educational support activities, not classified elsewhere

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

90.12.Z - Creative activities in visual arts

90.13.Z - Other creative activities

90.39.Z - Other activities supporting creative activities and activities related to staging artistic performances