The twentieth century witnessed a great development in terms of composition, writing, and composing as well as the emergence of many composers who contributed to the development of music significantly, including the Six Group, which consists of six revolutionary composers: George Aurich, Louis Doré, Arthur Honegger, Darius Miloud, and Francis Polank And German Tyver. Their works were characterized by diversity and techniques that required high performance technology. The researcher chose the first album for this group, which was published in 1919 A.D., and from it Bereliod by George Urik, classified (22), and Preliod by Francis Polank, classified (17), as both authors are considered to be those whose works are distinguished by technical ingenuity that requires performance technique and skill that needs study. The researcher dealt with these works of the piano with instrumental analysis and comparison, to help students understand them and try to perform them as required. The research includes the introduction, the research problem, its objectives, its importance, its questions, its limits, and two theoretical and applied frameworks as follows: First: The theoretical framework: It consists of: 1- Previous studies related to research. 2- About the Prelude template. 3- A brief history of French music development. 4- Group of Six. 5- The Sixth Album: Album des 6 6- A brief overview of George Aurick’s life, his most important works, and his style. 7- An overview of Francis Pollank's life, his most important works, and his style. Second: The Application Framework: It includes the theoretical and instrumental analysis of the piano Prelude by George Aurich (22) and Francis Polank (17), and identifying the musical difficulties of the two compilers, and how to overcome them.