In line with lead vocalist Eliezer Barletta, its musical genre could be characterized as nu metal, despite being difficult to define.
He is a strictly Orthodox Jew pertaining to Chabad-Lubavitch branch of Hassidism and regards Lubavitcher Rebbe Menachem Mendel Schneerson as his spiritual teacher.
In consonance with Hassidic teachings, the first song of Ciudad de luz is a Belarusian nigun called Nye Zhuritze Chlopzi ("Don't Worry, Fellows") which was traditionally sung by Hassidim on their road to the city of Lyubavichi (Lubavitch in Yiddish).
[15] Social researcher Damián Setton asserted that kabbalistic topics arise from the knowledge Barletta acquired through his conversion to Judaism.
"[17] Barletta reported that Ciudad de luz album has a "native sound, very white lyrics which reflect the purpose of existence from a Hassidic perspective of life and the worlds.
In the case of Jardines de fuego ("Gardens of Fire") he made it clear that it referred to the Jewish teaching that when a Torah scroll is written, both the black letters and the leather (considered white) are conveying a message.
This means, he continued, that not only what is revealed is good for us, but also those hidden things that are judged as bad because we do not yet understand them, as we are unable to see the concealed love present in them.
In reference to what the song (and its homonymous clip) Ser Humano meant, Barletta answered it is the struggle of man facing its defects.
They made an appearance in 2012 Daniel Burman's film La suerte en tus manos, with Barletta portraying a rabbi.