Rhythm is a very important element in poetry, and it is one of the essential ingredients Because rhythm is the aesthetic that it gives to the poet a faster effect on the listener and, therefore, adds to the effect of the meaning of the poem. This rhythmic and musical effect is very effective in resistant poetry especially in the qasida "al-M?jat al-?amr?" of Sula?man al-??sa, a qasida full of epic meanings that the listener understand revolutionary concepts, the same concepts of excitement that make the hard-core nation Emotionally, the listener understands this feeling from the rhythmic structure seen in both aspects of the inner rhythm and external rhythm.
The purpose of this research is to investigate the rhythmic and musical structure of the qasida "al-M?jat al-?amr?" based on the descriptive-analytical method, and find the musical elements used in the poet,and discover the Semantic effect of musical elements on qasida. So we use the method of censusing to determine how much it has been used. These musical elements. So in this study, we arrived at the results: The poet has composed the poem on the beat al-ba?r al-k?mil because the concepts used in the poem have a high semantic and need to be firmly laid out with a precise framework, and the poet has used the letter "al-d?l", and "al-b?" a lot, for the sound power of these two letters, but in the inner rhythm, the poet has used too much of the plosive letters to create a rhythmic and musical space poet with these strong letters for prepossessing of the listener to fight and to achieve freedom, and verbal esthetics is seen in the qasida such as:" al-?inas", "rad al-?a?uz ala al-?adr" Because the poet has used some similar words to illustrate the opposition between the Palestinians and the occupiers , and the purpose of repeating some of the words is to emphasize the concept that was mentioned at the beginning of the verse.