Brujeria are the most popular extreme metal outfit in Mexico, with their mass-mixture of grindcore with groovy death metal, bound with gory drug-related themes. Just like Slipknot, the band is not a common band, but a supergroup of people. Both bands use "anonymous" ways to "hide" and pseudonyms, being probably one of the first quasi-popular grindcore bands (aka groups) to use drop tunings. The quite unusual spectrum of this album for the eons of old-school grindcore was the use of slow and mid tempos, whereas grindcore originally feasted on mid-high tempo with velocity over groove-ity. This record is short compared to its number of tracks; when you hit six minutes, you're at the end of track five, also known as Matando güeros.
The guitar tone is half-pitch-shifted, accompanied by a grotesque reverb, along with the experimentation of various and copious genres like industrial metal, death metal, et cetera. Its effect of reverb and tone gives birth to a hallway with an uncanny yet visceral atmosphere, and this effect applies to the song "Seis Seis Seis", Its intro has a dramatic sixteenth-note pull-off between frets four and six (I think?). Juan Brujo's vocals are deep and mixed between growls and harsh Jeff Walker-like shrieks; you feel the vocals touching your soul, even if you're against the band's attitude, such as playing secret shows, singing about drug smuggling, et cetera. But if you're here for the sound, it's still worth it.
Once enough, also known as when all is said and done, this mildly-appreciated monsterous chef-made grindcore album smoothly turns into deathgrind's first heap. With fleshy tones, horrendous yet gorgeous riffs, and controverse themes, enough to make people sick. Barely compared to bands like Napalm Death, of which its bass/guitarist (Hongo) is a member of.
You can do the same tone of the intro for "Culeros" on the app Bias FX 2, just put some distortion, add a pitch shifter, and put it into the rock bottom and adjust a little bit the harmony, tune it in Drop B, and play some melodic two-string chords on the strings G# and B. Well, you got this song. This track seems like a ritual or something, probably it is? - Its atmosphere can be compared to the song "Reek of Putrefaction", by Carcass, which also includes a tenebrous atmosphere. It's worth checking out if you're mind-open to polemics.