Frank Ocean’s landmark channel ORANGE (2012) carries synesthesia in its title: he has explained that the summer he first fell in love appeared to him in orange, and the album is named for that color. His accounts around the record described experiencing periods and feelings as colors, consistent with emotion-linked chromesthesia.
Ocean is a private figure and has not elaborated at Pharrell-level length, so the record is a few strong firsthand statements rather than a catalog of examples. The naming of a major album for the experience is itself unusually concrete evidence of the trait mattering to the work.
He sits in the self-described tier on his own explanation of the title, with the brevity of the public record noted.