The Polish ensemble Kwartludium mixed concert and workshops for children aged 4-12 years – the audience that is the most open minded. 110 children participated in the event at a traditional concert hall. They listened to the new music with interest and remained concentrated during the whole event. They were eager to participate in all the proposed games and activities. This report describes the concept and shares the thorough evaluations made from observations of the children, evaluation games and a focus group interview with the parents.