Selim Palmgren achieved the pinnacle of success as a Finnish composer who excelled in writing for the piano player. The Twenty-Four Prelude volume for Selim Palmgren is one of the distinguished works he wrote for the piano because it is multi-level, and it is characterized by the liveliness of the template and the beautiful and interesting style that is characterized by its simple melodies and in The level of the learner's ability through which he can develop his mental ability and emotional response, as well as his ability to self-expression and sensory skill. Therefore, this research aims to identify the compositions of the Twenty-Four Prelude volume of piano music by Selim Palmgren, classified (17) . The research includes the introduction of the research - the problem - the objectives - the importance - the questions - the hypotheses - the limits of the research - the research procedures - the research tools - the search terms - the previous studies - the theoretical side and it includes a historical overview of the Scandinavian country music, an overview of the geographical location of Finland, the modern classic in Finland, the development of Finnish music in the twentieth century, the most important figures of Finnish music , and it includes a descriptive study of the compositions of the twenty-four volumes of piano music by Selim Palmgren in terms of theoretical and instrumental analysis and drawing out the results of the study, and the research concluded with results, recommendations and references.