The pieces Pictures at an Exhibition are composed by a Russian composer who belonged to this group known as what?
Pictures at an Exhibition (disambiguation) Pictures at an Exhibition is a suite of ten piano pieces composed by Modest Mussorgsky.
Sergei Lyapunov Sergei Mikhailovich Lyapunov (or Liapunov; Russian: Серге́й Миха́йлович Ляпуно́в , ] ; 30 November [O.S. 18 November] 1859 8 November 1924) was a Russian composer and pianist.