Musa elevá' is a poetic phrase that literally means "elevated muse". A musa (muse) is a source of artistic inspiration, and elevá' is a common Caribbean slang contraction of the word elevada (elevated or high).
In the song's chorus, Omar Courtz uses this phrase to tell a woman that she is his ultimate inspiration. Her presence gets his creative energy flowing to such a degree that he feels artistically 'high' and completely in the zone. It's a powerful way to say "you inspire me."
In "M U S A E L E V Á," Omar Courtz describes a woman who is his total inspiration. The title itself means "Elevated Muse," and he makes it clear why: "Baby, me tienes la musa elevá'" (Baby, you have my muse elevated). Their connection is intense and purely physical. He says she "quiere sexo, no quiere un polvo" (wants sex, not just a quickie), and he details their encounters with lines that are both clever and incredibly direct. The whole song is a tribute to her power over him and his creativity.
He paints a picture of a modern, whirlwind romance, from picking her up after she texts him to dealing with her "ex psycho" (psycho ex). There are also fun cultural references, like a nod to Rihanna's song "Work" and a shout-out to fellow artist Myke Towers. The vibe is confident and steamy, summed up perfectly when he says, "Ella está calientita, el cuarto frío, Detroit" (She's hot, the room is cold, Detroit), creating a cool contrast that defines their passionate relationship.