Educational and teaching services, namely, arranging classes, seminars, workshops in the field of music; editing and publishing of non-commercial texts, namely, editing and publishing of books, magazines, newspapers, brochures, pamphlets for cultural or educational purposes; production of films and videotapes; publication and editing of non-commercial texts via computer networks, namely, editing and publishing of non-commercial texts, namely, editing and publishing of books, magazines, newspa...