On 20 March, President of Armenia Armen Sarkissian and his wife, Nune Sarkissian attended the concert of Merited Artist of the Republic of Armenia, recipient of international awards and famous cellist Narek Hakhnazaryan at the Aram Khachaturian Concert Hall. Hakhnazaryan was accompanied by the Armenian National Philharmonic Orchestra, reports the official website of the President of the Republic of Armenia, according to NEWS.am.