Oo Records

Acid jazz is a groove-focused fusion that blends the rhythmic drive of 1970s funk and soul with jazz harmony, improvisation, and DJ culture. Emerging from the UK club scene in the late 1980s, it revived crate-dug "rare groove" aesthetics and reintroduced live instrumentation—Hammond organ, Rhodes, horns, and tight rhythm sections—into contemporary dance music. Stylistically, acid jazz favors mid-tempo, syncopated rhythms, vamp-based structures, extended chords, and concise solos, often paired with warm, analog-leaning production. It sits between dancefloor energy and lounge sophistication, bridging DJs, bands, and studio producers while maintaining a polished, urban, and feel-good mood.

City pop is a sleek, cosmopolitan strain of Japanese popular music that emerged in the late 1970s and flourished throughout the 1980s. It fuses the polish of Western AOR and soft rock with funk, disco, jazz fusion, and boogie grooves, wrapping them in sophisticated harmonies and studio gloss. Built for car stereos, FM radio, and neon-lit nightlife, the style favors tight rhythm sections, lush keyboards (Rhodes, FM synths), clean chorus-laden guitars, and sax or synth leads. Lyrics often paint aspirational urban scenes—coastal highways, midnight drives, summer romance—balancing breezy optimism with a bittersweet, nostalgic hue. After a period of relative dormancy in the 1990s, city pop enjoyed a global revival in the 2010s via YouTube algorithms, online crate-digging, and sample-based microgenres, turning once-domestic hits into worldwide cult classics.

Classic rock is a radio-defined umbrella for mainstream, guitar-centered rock music from the mid-1960s through the 1980s. It emphasizes blues-based riffs, memorable choruses, sturdy backbeats, and prominent guitar solos, often framed by warm, analog production. Rather than being a single stylistic branch, classic rock curates a canon that spans hard rock, blues rock, folk rock, psychedelic and progressive strains, and heartland- and country-tinged rock. Albums and album-oriented rock (AOR) values—extended tracks, conceptual cohesion, and musicianship—are central to its identity. The sound evokes tube-amp crunch, Hammond organs, stacked vocal harmonies, and anthemic songwriting designed for both FM radio and the concert arena.

Hard rock is a loud, riff-driven style of rock music built around heavily amplified electric guitars, a powerful rhythm section, and assertive vocals. Songs typically center on memorable, blues-based guitar riffs, strong backbeats, and energetic, often shouted or belted choruses. The genre emphasizes power, groove, and visceral impact over intricate harmony or extended improvisation. Distortion, power chords, pentatonic melodies, and call‑and‑response between vocals and guitar are core traits, while lyrical themes often explore rebellion, lust, swagger, escape, and cathartic release.

Heavy metal is a loud, guitar-driven style of rock defined by heavily distorted riffs, thunderous drums, and powerful vocals. Its musical language emphasizes minor modes, modal (Aeolian, Phrygian) riffing, and energy over groove, often featuring virtuosic guitar solos and dramatic dynamic contrasts. Emerging from late-1960s blues rock and psychedelic experimentation, heavy metal codified a darker, heavier sound with bands like Black Sabbath, Deep Purple, and Led Zeppelin. The genre values weight, intensity, and grandeur—whether through plodding, doom-laden tempos or galloping, high-energy rhythms—paired with themes that range from personal struggle and social critique to fantasy, mythology, and the occult.

J-rock (Japanese rock) is the umbrella term for rock music created in Japan, spanning everything from classic rock, punk, and metal to alternative, indie, and progressive strains. It blends Western rock instrumentation and songcraft with Japanese melodic sensibilities, crisp production, and lyrics primarily in Japanese (often mixed with some English phrases). Typical features include hook-forward choruses, expressive guitar leads, tight rhythm sections, and dynamic arrangements that can pivot from delicate verses to big, anthemic refrains. Because of Japan’s media ecosystem, J-rock frequently intersects with anime, TV dramas, and video games, which helps bands reach mainstream audiences while retaining a band-centric, live-performance identity. Although stylistically diverse, J-rock commonly emphasizes memorable melodies, emotional catharsis, and precise musicianship, with influences ranging from British Invasion and classic rock to punk/new wave, progressive rock, and heavy metal.

Metal (often used to mean heavy metal in its broad, umbrella sense) is a loud, guitar-driven style of rock defined by high-gain distortion, emphatic and often martial rhythms, and a dense, powerful low end. It foregrounds riff-based songwriting, dramatic dynamics, virtuosic guitar solos, and commanding vocals that range from melodic wails to aggressive snarls and growls. Harmonically, metal favors minor modes, modal color (Aeolian, Phrygian), chromaticism, and tritone-inflected tension, while thematically it explores power, mythology, the occult, social critique, fantasy, and existential subjects. While adjacent to hard rock, metal typically pushes amplification, distortion, precision, and thematic intensity further, forming a foundation for many specialized subgenres.

Neo-acoustic (often nicknamed "neo-aco" in Japan) is a gentle, guitar-forward strain of indie pop that emphasizes clean acoustic textures, jangly strums, and intimate, soft-spoken vocals. It trades the brashness of rock for nuanced chord color, light percussion, and melodic bass lines. The style draws heavily on British indie and the C86/twee movement, while folding in bossa nova’s relaxed syncopation and jazz-influenced chords. In Japan, the term came to denote a distinct indie sensibility—bookish, urbane, and romantic—that later fed into Shibuya-kei and various bedroom-pop and lo-fi currents. Typical arrangements favor acoustic guitars, brushy drums, tambourine or hand percussion, subtle keyboards, and occasional strings or winds. Lyrics tend toward everyday romance, small-town or city nostalgia, and quietly reflective storytelling.

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.

Shibuya-kei is a Japanese pop micro‑genre that emerged from Tokyo’s Shibuya district in the early–mid 1990s. It blends 1960s French yé‑yé, bossa nova, lounge/easy listening, baroque pop, jazz, sunshine pop, and slick city‑pop with contemporary sampling and electronic production. The style is cosmopolitan and retro‑futurist: it celebrates crate‑digging, witty pastiche, and graphic design/fashion as much as music. Songs often feature breezy melodies, airy or whispery vocals in Japanese, English, or French, and richly orchestrated arrangements that feel both nostalgic and playful.