The Koncrete Mixtape

Laboratorio is a Brazilian micro‑scene within contemporary hip hop that coalesced around artist‑run collectives and label ecosystems (most visibly Laboratório Fantasma). It blends boom‑bap and modern trap sensibilities with MPB, samba, and neo‑soul harmony, placing lyricism and social commentary at the core. The sound is defined by sample‑friendly, groove‑rich beats, live percussion drawn from Afro‑Brazilian traditions, and melodic hooks that often nod to MPB and samba‑soul. Artists use Portuguese lyricism to address race, class, identity, and everyday life, pairing incisive bars with warm, humanized production and frequent collaborations across rap, R&B, and pop.

Ratchet music is a minimalist, club-focused strain of West Coast hip hop that coalesced in the early 2010s, most closely associated with Los Angeles producer DJ Mustard. It emphasizes sparse drum programming built from 808 kicks, handclaps, crisp hi‑hats, and simple percussive fills; bouncy tempos around 95–105 BPM; short, catchy synth or piano stabs; and a weighty sub‑bass that leaves ample space for vocals. Culturally and lyrically, it channels “ratchet” party culture and slang—rooted in Louisiana (notably Shreveport’s nickname “Ratchet City”) and amplified by the L.A. party scene—favoring braggadocio, nightlife, flirtation, and chant‑able hooks over dense lyricism. The result is a stripped‑down, hook‑driven sound engineered for dance floors and radio rotation.

Tread is a micro-style of trap characterized by icy, futuristic synth palettes and extremely busy, high‑tempo drum programming built around distinctive 808 patterns. Producers favor cold pads, glassy bells, FM keys, and clipped, digital textures that feel mechanical but still swing. The sound coalesced around the Philadelphia collective Working on Dying in the mid‑2010s and spread through SoundCloud before surfacing on mainstream projects. Compared with other trap variants, tread is lean and minimal in harmony, yet aggressive in rhythm and sound design, creating a stark, nocturnal mood that still bangs in a club context.