The Nashville-based young composer and singer owes his popularity to, among other things, the viral song “If you were the rain” from his first album, 2016’s “Undergrad Romance and the Moses in Me.” To date, Stephen Day has released four albums, including his latest, “The Shapes I’m In,” in 2021. Each project explores a different form of artistic persona transitioning into a different form of true self, the artist says. Asked about the process of creating music, he said: “I felt as if the world around me and the world inside me was begging me to go deeper, in a way asking me to embrace the calling to be an artist, and I answered as well as I could.”