And yet, as with the guitar, Picasso's modest means yielded an extraordinary range of effects, from crashing chords to the quietest pizzicato. "Head of a Man." Kunsthaus Zürich. 7.

Pablo Picasso’s 1919 work “Guitar on a Table,” held on loan at the New York Museum of Modern Art since 1990, sold at Sotheby’s Monday for $37.1 million.