Crown Prince Naruhito on Sunday played a viola made of driftwood from a tsunami-ravaged city in Tohoku during a concert held by his alma mater's orchestra.
The viola, built by Tokyo violin maker Muneyuki Nakazawa, also contains part of the famed "miracle pine" that withstood the giant waves in Rikuzentakata, Iwate Prefecture.
Emperor Akihito, Empress Michiko and Crown Princess Masako attended the performance of Franz Schubert's "Unfinished Symphony."
The Crown Prince stood up after the performance to show the viola to the audience, including a picture of the pine on its back.
Nakazawa has also made violins from tsunami debris before, and a project is under way to have 1,000 musicians around the world play the instruments.
