The study of Bela Bartok's Four Dirges for piano (1909- 1910) is significant in that this period of 1908 to 1910 was particularly experimental and formative for Bartók, especially in tonal aspects of his compositional style. Furthermore, very little research and analysis has been done on these smaller works. This thesis contributes an analytical study of this early style and also shows its influence on larger mature works in subsequent years. A complete analysis on each dirge contains graphs of tonal structures and patterns constructed by Bartok within each composition. The concluding chapter summarizes overall characteristics of the dirges.