File:Tchaik3.jpg UVladimir Davydov ( December 14 [ - December 27 1906 )wayeyindodana yesibili ka-Lev no-Alexandra Davydov, nomshana womqambi uPyotr Ilyich Tchaikovsky, owayembiza ngokuthi "Bob". UTchaikovsky unikele ngeSithupha Symphony, iPathétique,kuDavydov, kanye ne-Children's Album yakhe yomculo wepiyano, u-Op. 39. Tchaikovsky Research article on Davydov, accessed January 23, 2010