The way of collecting sounds was different according to the peculiarities of the territories, the educational methodologies, and the pupils’ sensitivity.
In Italy some teachers made pupils build up their sound instruments using recycled materials, offering thus an original learning path through an active process of environmental sustainability.
In the other Countries, for example in Nova Gorica, natural elements have been used, such as water or stones, for creating sounds close to the nature and in other cases using typical tools of the Orff Approach.
Part of the sounds were created by extemporaneous improvisations in front of the camera, by the interpretation of already known music and by the recording of sounds of the environment (Soundscape).
Those sounds were recorded in places chosen by the pupils and discovered during nature walks with guides and operators.