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Leonardo da Vinci . Artwork title Portrt eines Musikers Ritratto del musicista Franchino Gaffurio portrait of Musician Portret muzyka oil wood cm Pinacoteca Ambrosiana Milan de Zuschreibung an Leonardo umstritten Gemlde unvollendet The Yorck Project Meisterwerke der Malerei DVDROM ISBN Distributed by DIRECTMEDIA Publishing