In this article, the aim of the authors is to study the role of repetition in creating music and parallelism in Nimayee poems in the three collections of poems by Mehdi Akhavan Sales: Zamestan, Akhere Shahname and Az Avesta. Accordingly, the researchers have investigated the various manners of repetition in creating parallelism in the poems at three levels: phonological parallelism, lexical parallelism and syntactic parallelism. The present article tries to show that the musical parallelism in Akhavan’s Nimayee poems rises from the phonological, lexical and syntactic repetition. The authors found that their phonological parallelism was based on consonant and vowel repetition in sentences and also linguistic expressions, variety of rhythms and the poet’s innovation in using some Nimayee rhythms. Moreover, the repetition of words in different manners and the use of rhyme and range have created the lexical parallelism in Akhavan’s poems. Finally, employing some figures of speech syntagmatically and paradigmatically have created the syntactic parallelism in this poems.