Gucci Mane became one of the south’s most prolific and influential rappers with the help of a deep bench of producers, and Xavier “Zaytoven” Dotson is first and foremost among them. A transplant from Oakland, California, who grew up playing church organ, Zaytoven brought a new set of textures and influences to the Atlanta trap sound with soulful keys, ornate piano runs, and squealing synths. That brighter array of tones helped Gucci stand out from his contemporaries on his early hits, and Zay soon began expanding his client base, working extensively with artists including Migos and Future. And after Gowop spent years in and out of prison, he linked up with his favorite beatmaker again to get back to work. -- Al Shipley