It was a warm summer evening. The gentle semi-darkness in the Poznań Parish Church is pierced by the last rays of the setting sun. The sound of footsteps from a growing crowd echoes within. Vastly outnumbered, a handful of tourists quickly blend in. Cordial greetings and hushed conversations can be heard. Faces familiar from Poznań's concert halls occasionally appear. Whispers gradually die down in the tightly packed pews. Up on the gallery, a musician takes a seat at the organ. Another "Old Town Organ Concert" is about to commence.