“The fullest realization” or “emanation” of the Trasa W-Z Archive is the Polish Rock Granary in Jarocin – a museum devoted to the festival’s and Polish rock’s history, founded in a historical building which used to be a granary. Jarosz is a co-creator of the multi-media concept of the permeant exhibition and most of the presented items come from the Archive. Museum organises educational workshops, regular mural painting in the city; specially for its purpose a collections of documentaries was also created. Its target is the school youth and the guests of the festival, organized in a new formula (since 2005).