Musa translates to "muse," referring to a source of artistic inspiration, often personified as a goddess in mythology.
In "Vivo Por Ella," the singer dedicates his life to a mysterious "her." The word musa is the perfect clue to her identity, describing her as the divine force that inspires him to create. The song's beautiful reveal is that this muse is none other than "Música" (Music) itself.
At first, this song sounds like the most intense love song ever written. Andrea Bocelli and Karol G sing about a mysterious 'her' who has completely conquered them. They live for her, and she gives them strength, truth, and a reason to exist. She's a constant companion who's always there "Para apagar mi soledad" (To extinguish my loneliness). This relationship is all-consuming; they sing "Vivo por ella y nadie más / Puede vivir dentro de mí" (I live for her and no one else / Can live inside of me). It's a powerful and total devotion.
But who is this 'her'? The song slowly gives us clues. She is a "musa que te invita / A tocarla suavecita / En mi piano" (muse that invites you / to touch her softly / on my piano). She sings in their throats and scares away their darkest sorrows. And then, the song reveals her identity: "Ella se llama Música" (Her name is Music). The entire song is a beautiful personification of Music itself, describing it as a life-giving force, a faithful partner, and the ultimate passion. It's their way of saying that, for an artist, music isn't just a job—it's everything.