Procession

The new wave of speed metal is a 2010s revivalist movement that resurrects the breakneck tempos, razor‑edged riffing, and high‑energy songwriting of classic 1980s speed metal. It favors twin‑guitar harmonies, athletic rhythm sections, and soaring, clean vocals that deliver anthemic hooks. Unlike the harsher edge of thrash, this wave leans into melodicism and precision: galloping rhythms, tightly palm‑muted alternate‑picked riffs, and flamboyant guitar solos. Production tends to be crisp but analog‑minded, evoking vintage warmth while meeting modern loudness and clarity.

Stoner metal is a heavy, riff-centered offshoot of doom metal that fuses the low-and-slow weight of early Sabbath with the hazy psychedelia and fuzz-drenched tones of 1970s hard rock. It emphasizes down-tuned guitars, thick midrange, and hypnotic, groove-forward drumming, often evoking a desert-heat mirage of sustained riffs and feedback. Compared to stoner rock, stoner metal leans darker and heavier, with a doomier pulse, longer song structures, and an almost trance-like fixation on repetition. Lyrics frequently explore cosmic wanderlust, occult imagery, apocalyptic visions, and cannabis counterculture, while production tends to favor warm, analog saturation and room-heavy drum sounds.

Epic doom metal is a doom metal substyle that emphasizes grandeur, melodicism, and a solemn, heroic atmosphere. It features slow to mid‑tempo, towering riffs; clear, dramatic, often operatic vocals; and lyrical themes drawn from mythology, tragedy, eschatology, fantasy, and historical epics. Compared with stoner/doom, its guitar tone is less fuzzy and more sculpted, with a crisp, heavy attack that leaves space for melodic leads and commanding vocals. Harmonic language leans on minor keys (often harmonic minor), stately chord movements, and memorable, anthem‑like motifs. Keyboards (organ, choir pads, mellotron) and choral overdubs are frequently used to heighten the monumental feel.

Sludge metal is a hybrid of doom metal’s slow, downtuned weight and hardcore punk’s raw aggression. It emphasizes thick, overdriven guitar tones, throttling bass, and drums that lurch between trudging slow-motion grooves and ragged mid‑tempo blasts. Vocals are typically screamed, barked, or anguished, often buried slightly in the mix to feel abrasive and cathartic. The style took shape in the late 1980s United States—particularly the Pacific Northwest and the American South—where bands fused Sabbath‑like doom riffs with the DIY harshness of hardcore and the scabrous textures of noise rock. Lyrical themes commonly explore addiction, despair, social decay, and Southern Gothic imagery, delivered with an intentionally gritty, unvarnished production aesthetic.

Doom metal is a heavy metal subgenre defined by slow to mid-tempo grooves, down-tuned, highly distorted guitars, and an atmosphere of dread, melancholy, and weight. It emphasizes ominous, minor-key riffs and sustained tones over speed or virtuosity, creating a crushing sense of space and inevitability. Vocals range from plaintive and theatrical (epic/traditional doom) to anguished wails or harsh growls (death-doom), and lyrics often explore themes of suffering, mortality, the occult, apocalyptic visions, and existential despair. Song structures are typically riff-centric and long-form, with repetition and gradual dynamic shifts producing a hypnotic, ritualistic feel.

Rock is a broad family of popular music centered on amplified instruments, a strong backbeat, and song forms that foreground riffs, choruses, and anthemic hooks. Emerging from mid‑20th‑century American styles like rhythm & blues, country, and gospel-inflected rock and roll, rock quickly expanded in scope—absorbing folk, blues, and psychedelic ideas—while shaping global youth culture. Core sonic markers include electric guitar (often overdriven), electric bass, drum kit emphasizing beats 2 and 4, and emotive lead vocals. Rock songs commonly use verse–chorus structures, blues-derived harmony, and memorable melodic motifs, ranging from intimate ballads to high‑energy, stadium‑sized performances.