The Polish ensemble Kwartludium mixed concert and workshops for children based on the belief that new music should be reachable for the young audience – the audience that is the most open minded. They made two concerts; one for the 4-7 year olds and one for the 8-12 year olds. Both concerts took place at the National Gallery of Art ZACHĘTA and were a great success. This report describes the concept and shares the thorough evaluations made. Throughout the event a number of children where being observed for the ensemble to learn from their reactions. Furthermore an evaluation game was made with the children after the event, as well as a focus group interview with some of the parents.