The purpose of the thesis is to analyze formally, harmonically and melodically the five movements of the suite both as separate movements and inclusively as one cohesive unit. The thesis will be written in three parts: Part One will include a biographical sketch of the composer, a general discussion of his music, background information on the suite and Dett's antecedents and contemporaries influencing him. Part Two will discuss the following: A) Form, B) Harmonic Analysis, and C) Melodic Analysis and the influences of black folk idioms. Part Three will include the keyboard music of Dett's contemporaries as compared to his suite in terms of their contrasts and similarities.