Trompeta translates to "trumpet." It's an interesting word because it's not commonly found in everyday song lyrics, making it unique to this song.
In the title and lyrics, Juan Luis Guerra uses "trompeta de jazz en solo" (jazz trumpet in solo) to evoke a vivid image of something sudden, clear, and impactful, much like the unexpected arrival of a trumpet solo. This musical imagery adds a layer of depth and memorability to the song's message.
Juan Luis Guerra sets a doomsday warning to a merengue horn line. He opens with "En un abrir y cerrar de ojos" [In the blink of an eye], then compares the moment to "Como trompeta de jazz en solo" [Like a jazz trumpet in a solo], a sudden blast with no lead-in. "Hora ni día" [Hour nor day] and "Como ladrón en noche fría" [Like a thief on a cold night] both come straight out of the Gospels: nobody gets a countdown.
But the song will not stay grim. Christ comes "Viene a buscar los que le aman" [He comes to find those who love Him], and "A consolar", "Toda lágrima" [To comfort, every tear]. By the chorus the warning has become a party: "Cristo ya viene" [Christ is coming now] repeats over horns and congas until it breaks into scat syllables like "Zebedebedebe", then into a flat-out "Praise, praise", two words that need no translation at all.