Hossein Salimi

Abstract: Mustafa Rahmandust is the powerful author and poet in the poetry and children literature. As the rhythm is one of the agents of poetry music and the most important of them, and this importance have appearance prominently in children poetry, the basis of harmony of Rahmandust children poetries with their contents were considered. These poetries that are the reflex of his thoughts, the more they have the spiritual and Gnosticism conditions and also the used rhythms in them, symmetrical with their contents, are the flowing rhythms. Rahmandust has used from the happy and waving rhythms for the children poetries and for the higher age groups, has enjoyed from the calm rhythms. Rhythm variety is seen clearness in the poetries of this poet, where in ten considered books, more than frothy rhythms were found from the prosodic rhythms. in this topic ,after the studies of poetries and finding the rhythm of each one and the division of used rhythms, to rhythms (calm), (waving)and (in the middle) With due regard to recommendations are presented about rhythm till now, and of course regarding to the quality of putting the spelling beside each other and also the quantity of their varieties, the relation of Detected rhythms with the content of rhythm is considered and also it was proceeded to the analysis of each one. Key Words: Calm, Intermediate, Waving, Mustafa Rahmandust, The Coordination Of Rhythm And Content.