«Imagine attending a concert but instead of sitting or standing, you walk.
Imagine the music you listen to captured from sounds that already exist around you as you walk through the concert.
Imagine the concert is slightly different each time you experience it because there may be unexpected sounds along the way.
Sans façon and composer John Metcalf have collaborated to create Odd Sympathies, three new sonic pieces that capture the sounds of the city of Cardiff and together form what we believe is the first sonic map of the city.
Drawing inspiration from the iconic work 4' 33" by John Cage, Odd Sympathies is a series of carefully composed sound maps of Cardiff that take in some of the fascinating landmarks in the city and open the ears to a sound world that is in many ways as dense and magical as a rainforest.»
From Artes Mundi project project description.

The audience was lead by a conductor and invited to follow one of the carefully designed and timed itinerary in silence lasting 30 minutes.
The original piece was performed 3 times a day for 9 days in April 2008, starting on the steps of the National Museum of Wales.

John Metcalf
Artes Mundi