* It's based on blues music: The poem imitates the structure and rhythm of blues music, which often relies on repetition and variations rather than strict rhyme.
* Repetition and variations: Hughes uses phrases like "I got the weary blues" and "He ain't got nobody in all this world" repeatedly, changing just a few words to create variations.
* Internal rhyme: While not a traditional rhyme scheme, you will find internal rhymes within the lines, like "He played that saxophone 'til the sweat popped out his brow" (saxophone/brow).
Therefore, while it's not a classic ABAB or AABB rhyme scheme, "Weary Blues" utilizes repetition, variations, and internal rhymes to create a distinct poetic rhythm that mirrors the blues.