#deutsche grammophon #classical music #Lang Lang #klassische musik #opera #orchestra #mozart #beethoven #Mari Samuelsen #mari samuelsen #violin #violinist #Moonlight #moonlight #Mari Samuelsen performs Moonlight #pseudovideo #audio #track #music video #una mattina #black and white video #performance #DG #Deutsche Grammophon #Mari #Samuelsen #ludwig van beethoven #moonlight sonata for violin #Ludovico Einaudi #Mari Samuelsen performs Einaudi #Una Mattina #mari samuelsen performs una mattina