The present diploma thesis deals with the life and compositional style of M. P. Mussorgsky and the generation of The Five. Subsequently, it focuses on the analysis of Mussorgsky's piano work Pictures at an Exhibition, the circumstances of its origin and its sources of inspiration. In the section devoted to the interpretation concept, this thesis aims to analyze and then compare two selected piano performances of Pictures at an Exhibition, namely the ones by E. Kissin and K. Buniatishvili, on the basis of which it will point out specific features of the concept and way of playing of each of these pianists.