Pictures at an Exhibition is a suite of ten pieces—plus a recurring, varied Promenade—composed for piano by Russian composer Modest Mussorgsky in 1874. The suite is Mussorgsky’s most famous piano composition, and has become a showpiece for virtuoso pianists. The composition is based on pictures by the artist, architect, and designer Viktor Hartmann. It was probably in 1868 that Mussorgsky first met Hartmann, not long after the latter’s return to Russia from abroad. Both men were devoted to the cause of an intrinsically Russian art and quickly became friends. They likely met in the home of the influential critic vladimir Stasov, who followed both of their careers with interest. According to Stasov’s testimony, in 1868, Hartmann gave Mussorgsky two of the pictures that later formed the basis of Pictures at an Exhibition. Hartmann’s sudden death on 4 August 1873 from an aneurysm shook Mussorgsky along with others in Russia’s art world. The loss of the artist, aged only 39, plunged the composer into deep despair. Stasov helped to organize a memorial exhibition of over 400 Hartmann works in the Imperial Academy of Arts in Saint Petersburg in February and March 1874. Mussorgsky lent to the exhibition the two pictures Hartmann had given him, and viewed the show in person. Later in June, two-thirds of the way through composing his song cycle Sunless, Mussorgsky was inspired to compose Pictures at an Exhibition, quickly completing the score in three weeks (2–22 June 1874). The music depicts his tour of the exhibition, with each of the ten numbers of the suite serving as a musical illustration of an individual work by Hartmann.