Sometimes the inspiration for a piece of art is another work of art. Russian composer Modeste Mussorgsy’s “Pictures at an Exhibition” is a suite of 10 piano pieces composed in reflection on 10 paintings by Mussorgsy’s good friend Vladimir Hartmann. The paintings were exhibited at a memorial after the artist's death. A recurring musical theme called a promenade links the pieces together and represents the viewer’s walk from painting to painting in the exhibition. Over the years, several composers orchestrated “Pictures at an Exhibition,” with the most famous being that by Maurice Ravel.