Sordos translates to "deaf". While seemingly straightforward, its use in the song's title, "La Ruta De Los Sordos" (The Route of the Deaf), is highly metaphorical and intriguing.
In the context of the lyrics, it refers to the music industry executives and the general public who are
Mägo de Oz, a band from Spain, tells a story in "La Ruta De Los Sordos" about the struggles of an artist trying to make it in the music world. The song starts with someone arriving in Madrid with big dreams and songs, only to be told by a music executive, "Tus canciones molan / Pero ya nadie escucha rock" [Your songs are cool / But nobody listens to rock anymore]. The executive offers fame in exchange for a "little bit of your love," which the artist rejects by smashing their guitar on the executive's head while singing.
Despite being told to "Cambia de estilo... Y haz urbano en vez de rock" [Change your style... And make urban instead of rock], the artist holds out. But eventually, just before midnight, they sign a contract "con el rey del mal" [with the king of evil] at a crossroads. This deal finally brings success, meaning they'll never again have to follow "la ruta de los sordos" [the route of the deaf] in another record company. The song humorously concludes by stating that God created everything else, but "El Diablo se aburría / Y el blues y el rock inventó" [The Devil was bored / And invented blues and rock], making rock and roll a truly devilish creation!