Keywords: Beethoven-Mähler 1804 hires.jpg Artwork en Joseph Willibrord Mähler's 1804-5 portrait of Beethoven 1804 “1805 oil Institution Wien Museum accession number object history Book Beethoven a documentary study Compiled and edited by H C Robbins Landon New York Macmillan 1970 Q17509039 PD-art-100-1923 Ludwig van Beethoven with a Lyre-guitar Mähler |