Etudes-tableaux op. 33 & 39 - Rachmaninov, Sergej Vasilʹevič 1873-1943; Rachmaninov, Sergej Vasilʹevič 1873-1943; Rachmaninov, Sergej Vasilʹevič 1873-1943 (Brilliant Classics, 2003)
Interpr.: Nikolai Lugansky, piano. Marietta Petkova, piano. - Aufn.: Moscow, Russian Academy of Music, June 1990. The Netherland, Hervormde Kerk Rhoon, 2-3-4 April 2002