Since the end of the nineteenth century and the beginning of the twentieth century, Russia witnessed a remarkable musical development that it had not witnessed before, and the state made it a part of public thought, as it introduced it into clubs, factories, and operas, encouraged talents, published books, and supported scientific research. Febek is one of the Russian authors whose works are distinguished by his technical ingenuity that requires high performance technique and skill. He presented nearly 600 pieces, and therefore the researcher dealt with one of them with instrumental analysis to help scholars understand and perform it as required. The research includes: an introduction, the research problem, its objectives, its importance, the research hypotheses, and its limits. The research includes two frameworks: The theoretical framework and consists of: - About the SCRTZO template. - An overview of the life story of the Czech composer Vibek, and a presentation of his most important works and style. Previous studies related to the research topic. Application framework: - The theoretical and instrumental analysis of the two works classified 4 by FEPIC, identifying the technical difficulties, and explaining how to overcome them. - View findings, recommendations, and references.