Performers and visitors to the famous gothic cathedral in the midst of the River Seine may find some subtle differences to the way sound bounces around its walls.

The Cathedral of Notre-Dame de Paris has borne witness to many turning points in history. The building's striking gothic stonework has stood sentry on an island in the midst of the River Seine since the late 12th Century as  have unfolded in its shadow. What you might not realise, however, is that the cathedral has played a key part in shaping the music you hear when you turn on the radio or stream a playlist.