“Ratatouille” exemplifies this shift toward unmitigated optimism. Vashi speeds up a 1980s Bollywood-esque melody—think lovers dancing in a field in springtime—till it warps into something darker. Midway through the song, Heems rhymes “Ay yo I’m on antidepressants” with “I’m feeling good man, I’m eating lettuce.” A few bars later, he raps, “Life is beautiful, I’m…