The song is a reflection on the and the nature of inspiration.
The title and refrain "No son martes de carnaval de Brasil" (They aren't Tuesday of Brazil's Carnival) serve to distance the song's themes from the ephemeral, forced joy of a festival. It emphasizes that true creation comes from daily work—"desenvainar las espadas del texto" (unsheathing the swords of text)—rather than waiting for a specific celebration or "urgent song".
Calamaro rejects the trope that artists need tragedy, loneliness, or substance abuse to be inspired. He describes the muse as a "serpiente de muchas cabezas" (many-headed snake) that can appear at any moment, even through someone simply walking by.
