The main purpose of this dissertation is to illustrate 'Arar's prosodic and rhythmic structure. It also deals with 'Arar's life, career, social and political themes. These two themes enriched the Poet's relationship with his homeland and with the gypsies since it is the relationship between prosody and rhythm. Without these poetic themes, it was impossible for him to build an experimental approach to both prosody and rhythm. In prosody, the researcher provides a new approach to al-Khalil's system in identifying four basic feet which were successfully used by 'Arar's. These basic feet are:(UNFORMATTED TABLE OR EQUATION FOLLOWS)usdusda. fa\sp{c}ulun u - - (obligatory) b. mafa\sp{c}ilun u - - - (obligatory) c. mafa\sp{c}alatun u - u u - (obligatory) d. maf\sp{c}ulatu - - - u (optional)usdusd(TABLE/EQUATION ENDS) These four feet are considered basic feet which generate: (a) minor feet, (b) al-Khalil's five circles, (c) Arabic meters. This cyclical system of feet, their derived circles and the meters generated by them made 'Arar aware of their basic constituents, namely moving and quiescent letters. As for rhythm, 'Arar based his on a combination of quaternary with senary measures, or a combination of senary measures amongst themselves. Rhythm is also based on the four feet mentioned above, which gave the Poet the possibility of choosing his two favorite meters al-Kamil (the complete) and al-Basid t (the simple) to fulfill his need to express his relationship with his homeland and the Gypsies. 'Arar composed his poetry through the variation of the feet in the rhythmical measures and the regularity of the prosody. This study clarifies the order of Arabic prosody and rhythmical structure as a whole and 'Arar's application of it in particular.