Art festival in Reykjavik,Iceland - Ship Horns concert

Today started the art festival in Reykjavik,Iceland . And the first thing that was done , was a concert in Reykjavik harbour . 15 boats ( ships ) in Reykjavik harbor played a concert on their horns , for ten minutes -
 It was controlled by the author , with a radio to the ships. And in the end , all the ships signed off - as you can hear on the loudspeaker in the end -
 Probably the biggest concert ever - regarding - Size- weight and volume - Lot of people attended the concert - Dont know if they will play again - and if so - where .