Cantiga translates to "song" or "ditty," but it carries a more traditional and poetic connotation than the common word "música."
In this beautiful Chico Buarque song, the narrator asks his beloved to remember this specific "cantiga" he wrote for her, even after he's gone. It emphasizes the personal, heartfelt, and enduring nature of his musical dedication, making it a unique and touching choice.
Chico Buarque's "Tua Cantiga" is a beautiful, almost obsessive declaration of devotion. It's about a love so strong that the singer promises to drop everything and come running whenever his beloved needs him. Whether she's feeling lonely ("Quando te der saudade de mim" [When you miss me]), sad, or even if her current 'guard' tries to lead her away, he'll be there. He even says he'll leave his wife and children and follow her on his knees if she demands it ("Largo mulher e filhos e de joelhos vou te seguir" [I'll leave my wife and children and follow you on my knees]) – a pretty intense promise!
The song paints a picture of a love where she'll be his queen in their home, even if she's cruel or makes demands. He admits he'll be jealous, even of himself embracing her in a mirror. But despite all this, he promises to always be her lover, even more so than he is now. He ends by asking her to remember this song, his "cantiga" [song], when he's no longer around, a sweet and melancholic touch to such a passionate declaration.