Tracking Waves

Abstract hip hop is a deliberately experimental, left-field branch of hip hop that emphasizes mood, texture, and unconventional structures over radio-oriented hooks. Beats are often off-kilter, skeletal, or rhythmically unstable, with heavy use of negative space, collage-like sampling, noise, and ambient wash. Production draws from IDM, illbient, trip hop, and dub, favoring granular edits, tape hiss, vinyl crackle, and detuned or atonal timbres. Vocals, when present, lean toward stream‑of‑consciousness poetics, surreal imagery, dense internal rhyme, and non-linear narrative, frequently eschewing traditional verse–chorus formats. The result is a challenging but evocative sound world—introspective, cinematic, and sometimes abrasive—that reshaped the possibilities of underground hip hop in the late 1990s and 2000s.

Ambient is a form of electronic and electroacoustic music that prioritizes tone, atmosphere, and texture over conventional song structures and rhythmic drive. It typically features slow-moving harmonies, sustained drones, gentle timbral shifts, and extensive use of space and silence. Rather than drawing attention to itself through hooks or beats, ambient is designed to be as ignorable as it is interesting, rewarding both background listening and focused immersion. Artists often employ synthesizers, samplers, tape loops, field recordings, and subtle acoustic instruments, with reverb and delay creating a sense of place. Substyles range from luminous, consonant soundscapes to darker, more dissonant atmospheres.

Boom bap is a foundational East Coast hip hop style defined by hard, punchy drums—“boom” for the kick and “bap” for the snare—laid under sample-based loops from jazz, soul, and funk records. It typically runs around 85–96 BPM, favors gritty, minimally processed textures (often associated with SP‑1200 and early Akai MPC samplers), and foregrounds lyrical skill: multisyllabic rhyme schemes, internal rhymes, storytelling, street reportage, and battle bars. DJ techniques such as scratching and cut‑choruses are common, and arrangements emphasize head‑nod grooves, sparse basslines, and tight bar structures that give MCs room to “sit in the pocket.”

Breakbeat is an electronic dance music style built around syncopated, sampled drum "breaks" rather than a straight four-on-the-floor kick. Producers chop, loop, and rearrange classic drum breaks (such as the Amen, Apache, and Think breaks) to create swung, shuffling rhythms with strong backbeat accents. Emerging from the UK rave continuum, breakbeat draws heavily on hip hop’s sampling culture and electro’s machine-funk, while adopting house/acid-house sound design and club-focused arrangements. Tempos most commonly sit between 125–140 BPM (though broader ranges occur), featuring heavy sub-bass, crunchy snares, and edits/fills that propel dancefloors without relying on a 4/4 kick. As a scene, "breaks" spans everything from big-room, party-leaning grooves to techy, nu skool textures and regional variants like Florida breaks. It also functions as a foundational rhythmic vocabulary that informed jungle and drum and bass, and it underpins much of modern bass music.

Broken transmission is a vaporwave-adjacent microgenre built from fragmented, channel-surfing collages of analog broadcast ephemera. Producers splice together tiny shards of TV idents, news stingers, commercials, interstitial music, and dead air, emphasizing tape hiss, static, dropouts, and tuning noise as musical material. Often beatless or only loosely pulsed, tracks unfold like late-night flipping through channels: abrupt cuts, fleeting jingles, station sign‑offs, and half-heard voiceovers that dissolve into snow. The result is a liminal, hauntological mood—nostalgia filtered through the mechanical errors and material decay of VHS, cable boxes, and broadcast tape. Where classic vaporwave slows and loops pop smoothness, broken transmission foregrounds the texture of the medium itself. It treats errors, transitions, and broadcast artifacts as hooks, creating an uncanny documentary of mediated memory.

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.

Cyberpunk is an electronically driven music style that evokes neon-lit, high-tech dystopias through gritty sound design, machine-like grooves, and noir atmospheres. It blends elements of industrial, EBM, synth-pop, darkwave, and techno to create a futurist, urban mood grounded in rhythm and texture. Typical palettes include distorted drum machines, FM and wavetable synths, granular and glitch processing, metallic percussion, vocoders, and brooding pads, often punctuated by sampled city noise or radio chatter. Tempos commonly range from 100–140 BPM, alternating between four-on-the-floor EBM propulsion and broken, breakbeat-based momentum. Lyrically and conceptually, cyberpunk deals with surveillance, megacorporations, hacking, bio-modification, urban decay, and resistance—placing human emotion against cold, mechanized backdrops.

Disco is a dance-focused style of popular music that emerged in early-1970s urban nightlife, especially in New York City and Philadelphia. It is defined by a steady four-on-the-floor kick drum, syncopated hi-hats and handclaps, octave-jumping basslines, lush string and horn arrangements, and a glamorous, celebratory sensibility. Built for DJs and clubs, disco favored extended 12-inch mixes with breakdowns and build-ups that kept dancefloors moving. The sound drew from soul, funk, and Latin music, embraced orchestral textures, and became a cultural movement associated with Black, Latino, and LGBTQ+ communities before crossing over to mainstream pop by the late 1970s.

Drone is a minimalist music genre defined by sustained tones, long durations, and extremely gradual change. Harmony is often static or centered on a single fundamental with subtle overtone shifts, while rhythm tends toward stasis or very slow pulses. Sound sources range from acoustic instruments (e.g., strings, organ, bagpipes, shruti box, tambura) to electronics (sine waves, oscillators, feedback, tape loops, and later digital synthesis and processing). Many composers favor just intonation or other alternative tuning systems to emphasize beating patterns, psychoacoustic effects, and the internal life of sound. Although drone as a sonic principle is ancient and global, the modern experimental genre cohered in the 1960s through the New York minimalists and related avant‑garde circles, then spread into ambient, experimental, and heavy music scenes. The focus is less on melody and more on timbre, resonance, and the phenomenology of listening.

Eccojams is a microgenre built from extremely short, looped fragments of 1980s and 1990s pop, R&B, soft rock, and smooth jazz recordings that are slowed down, pitch-shifted, and drenched in echo and reverb. The aim is to induce a hypnotic, memory-haunted mood through minimal alteration and obsessive repetition. Rather than full remixes, eccojams isolate a few seconds that feel emotionally resonant—often a single vocal melisma, chord change, or sax flourish—and stretch it into a drifting, sentimental vignette. The texture typically includes VHS-like degradation, tape hiss, and retro consumer‑media aesthetics, emphasizing nostalgia, melancholy, and the uncanny. The term and template come from Chuck Person’s Eccojams Vol. 1 (2010), a seminal release that served as a primary blueprint for early vaporwave and its many satellite styles.

Electronic is a broad umbrella genre defined by the primary use of electronically generated or electronically processed sound. It encompasses music made with synthesizers, drum machines, samplers, computers, and studio/tape techniques, as well as electroacoustic manipulation of recorded or synthetic sources. The genre ranges from academic and experimental traditions to popular and dance-oriented forms. While its sonic palette is rooted in electricity and circuitry, its aesthetics span minimal and textural explorations, structured song forms, and beat-driven club permutations. Electronic emphasizes sound design, timbre, and studio-as-instrument practices as much as melody and harmony.

Electronica is a broad, largely 1990s umbrella term for a spectrum of electronic music crafted as much for immersive, album‑oriented listening as for clubs and raves. It gathers elements from techno, house, ambient, breakbeat, IDM, and hip hop production, emphasizing synthesizers, drum machines, samplers, and studio experimentation. The sound can range from downtempo and atmospheric to hard‑hitting and breakbeat‑driven, but it typically foregrounds sound design, texture, and mood over strict dance‑floor utility. In the mid‑to‑late 1990s the term was used by labels and press—especially in the United States—to market and introduce diverse electronic acts to mainstream rock and pop audiences.

Experimental music is an umbrella term for practices that prioritize exploration, process, and discovery over adherence to established genre norms. It embraces new sound sources, nonstandard tuning systems, indeterminacy and chance operations, graphic and open-form scores, extended techniques, and technology-led sound design (tape, electronics, computers, and live processing). Rather than a single style, it is a methodology and ethos: testing hypotheses about sound, structure, and performance, often blurring boundaries between composition, improvisation, sound art, and performance art. Listeners can expect unfamiliar timbres, unusual forms, and an emphasis on how music is made as much as the resulting sound.

Experimental hip hop (often called avant-rap or left-field hip hop) pushes rap beyond conventional song forms, sound palettes, and production techniques. It hybridizes boom‑bap and contemporary hip hop rhythms with ideas from industrial, noise, IDM, electroacoustic music, and free jazz, favoring timbral risk‑taking, collage, and abstraction over radio‑oriented polish. Producers and MCs in this style disrupt expectations with unusual meters, asymmetric loops, microtiming, extreme dynamics, and heavy sound design (distortion, granular and spectral processing, tape manipulation). Vocals may range from conventional rapping to spoken word, chant, screams, or heavily processed deliveries. The result foregrounds texture, mood, and concept as much as groove and lyrical content.

Funk is a rhythm-forward African American popular music style that centers on groove, syncopation, and interlocking parts. Rather than emphasizing complex chord progressions, funk builds tight, repetitive vamps that highlight the rhythm section and create an irresistible dance feel. The genre is marked by syncopated drum patterns, melodic yet percussive bass lines, choppy guitar "chanks," punchy horn stabs, call‑and‑response vocals, and a strong backbeat. Funk’s stripped-down harmony, prominent use of the one (accenting the downbeat), and polyrhythmic layering draw deeply from soul, rhythm and blues, jazz, gospel, and African rhythmic traditions. From James Brown’s late-1960s innovations through the expansive P-Funk universe and the slicker sounds of the 1970s and 1980s, funk has continually evolved while seeding countless other genres, from disco and hip hop to house and modern R&B.

Future funk is an internet-born dance microgenre that fuses the sample-heavy ethos of vaporwave with the upbeat grooves of disco, funk, and Japanese city pop. Producers typically chop and pitch up catchy hooks from late-1970s and 1980s records, loop them over four-on-the-floor drums, and apply filter sweeps and sidechain compression in the spirit of French house. The result is a sparkling, high-energy sound that feels both retro and forward-looking. Visually and culturally, the scene leans into neon-soaked, anime-tinged aesthetics and nostalgic party energy, turning classic pop and boogie flavors into compact, danceable edits tailored for the web era.

Hip hop is a cultural and musical movement that emerged from Black, Latino, and Caribbean communities, centering around rapping (MCing), DJing/turntablism, sampling-based production, and rhythmic speech over beats. It prioritizes groove, wordplay, and storytelling, often reflecting the social realities of urban life. Musically, hip hop is built on drum-centric rhythms (from breakbeats to 808 patterns), looped samples, and bass-forward mixes. Lyrically, it ranges from party anthems and braggadocio to political commentary and intricate poetic forms, with flow, cadence, and rhyme density as core expressive tools. Beyond music, hip hop encompasses a broader culture, historically intertwined with graffiti, b-boying/b-girling (breakdance), fashion, and street entrepreneurship, making it both an art form and a global social language.

Instrumental is music created and performed without sung lyrics, placing the expressive weight on melody, rhythm, harmony, and timbre produced by instruments. As an umbrella practice it appears in many cultures, but its modern identity cohered in Baroque-era Europe when purely instrumental forms such as the sonata, concerto, and dance suites began to flourish. Since then, instrumental thinking—developing motives, structuring form without text, and showcasing timbral contrast—has informed everything from orchestral music and solo piano repertoire to post-rock, film scores, and beat-driven electronic styles. Instrumental works can be intimate (solo or chamber) or expansive (full orchestra), narrative (programmatic) or abstract (absolute music). The absence of lyrics invites listeners to project imagery and emotion, making the style a natural fit for cinema, games, and contemplative listening.

Lo-fi is a music aesthetic and genre defined by an embrace of audible imperfections—tape hiss, clipping, room noise, distorted transients, and uneven performance—that would be treated as errors in high-fidelity recording. Emerging from the DIY ethos of American indie and punk scenes, lo-fi turns budget constraints and home-recording limitations into a signature sound. Songs are often intimate, direct, and unvarnished, prioritizing immediacy and personality over polish. Typical lo-fi recordings use 4-track cassette or similarly modest setups, simple chord progressions, and understated vocals, spanning rock, folk, pop, and experimental approaches while retaining a homemade warmth and nostalgic patina.

Lo-fi hip hop is a mellow, sample-driven offshoot of hip hop that emphasizes warm, imperfect textures, simple loops, and relaxed grooves over virtuosic rapping or dense production. Producers often foreground tape hiss, vinyl crackle, and bit-depth artifacts to evoke a cozy, worn-in feeling that complements the genre’s minimal, repetitive structures. Built from boom-bap drum programming, jazzy chord progressions, and short melodic motifs, lo-fi hip hop typically functions as instrumental background music for reading, studying, or unwinding. Its aesthetics are closely tied to internet culture—especially 24/7 livestreams and anime-inspired visuals—making it one of the most recognizable “ambient hip hop” sounds of the streaming era.

Mallsoft is a subgenre of vaporwave that magnifies the sound and ambience of shopping malls, corporate lobbies, food courts, and retail soundtracks. It often loops, slows, and filters archival easy listening, smooth jazz, or library music to simulate the dreamlike experience of wandering an empty mall. The style foregrounds spatial illusion and consumer nostalgia: wide reverbs, distant PA announcements, and fountain or escalator noise create a glossy yet uncanny, hyper-commercial environment. Rather than rhythmic drive, mallsoft prioritizes mood, texture, and the sensation of endless browsing in a perpetually pristine retail space.

Plunderphonics is a sample-based music practice in which new compositions are made entirely or predominantly from pre‑existing recordings. Rather than using short, unrecognizable snippets as texture, plunderphonic works foreground recognizable materials—pop hits, classical excerpts, commercials, voice-overs—and transform them through juxtaposition, layering, pitch-shifting, time-stretching, and collage. Coined by Canadian composer John Oswald in the mid‑1980s, the term names both a technique and a critical stance that questions authorship, originality, and ownership in the age of reproducible media. Plunderphonics often functions as cultural commentary or satire, drawing attention to how meaning changes when familiar sounds are recontextualized. Stylistically, it ranges from dense cut‑up cacophony to groove-oriented rearrangements that remain danceable and accessible.

R&B (Rhythm and Blues) is a vocal- and groove-centered popular music tradition that blends blues tonality, jazz harmony, and gospel-inflected singing with a steady backbeat. It emphasizes expressive lead vocals, call-and-response, lush harmonies, and danceable rhythms. From its 1940s roots in African American communities to its later evolutions, R&B has continually absorbed and reshaped surrounding sounds—from jump blues and swing in the early days to soul, funk, hip hop, and electronic production in the contemporary era. Today, R&B ranges from intimate, slow-burning ballads to club-ready tracks, all tied together by a focus on feel, melody, and vocal performance.

Trap is a subgenre of hip hop that emerged from the Southern United States, defined by half-time grooves, ominous minor-key melodies, and the heavy use of 808 sub-bass. The style is characterized by rapid, syncopated hi-hat rolls, crisp rimshot/clap on the backbeat, and cinematic textures that convey tension and grit. Lyrically, it centers on street economies, survival, ambition, and introspection, with ad-libs used as percussive punctuation. Production is typically minimal but hard-hitting: layered 808s, sparse piano or bell motifs, dark pads, and occasional orchestral or choir samples. Vocals range from gravelly, staccato deliveries to melodic, Auto-Tuned flows, often using triplet cadences.

Vaportrap is a hybrid microgenre that blends the hazy, sample-based aesthetics of vaporwave with the rhythmic language and sound design of modern trap and cloud-rap instrumentals. It typically features half-time 808 grooves, shimmering pads, pitched-down or time-stretched samples from 1980s–1990s media (commercials, corporate music, smooth jazz, R&B), and a lo‑fi, nostalgic atmosphere. Compared to straight vaporwave, vaportrap is more beat-driven and club-aware; compared to mainstream trap, it is more ambient, textural, and dreamlike.

Vaporwave is an internet-born microgenre and visual aesthetic that repurposes late‑20th‑century commercial sound—mu zak, smooth jazz, soft rock, synth‑pop, city pop, and corporate training tapes—into hazy, slowed, and looped collages. Its sound foregrounds pitched‑down samples, heavy reverb, tape hiss, vinyl crackle, and dreamy pads to evoke a mood between satire and sincere nostalgia. Beyond music, vaporwave is inseparable from its graphic language: Greco‑Roman busts, Japanese text, retro operating systems, chrome logos, palm trees, neon gradients, and “mall culture” architecture. The result feels like a haunted shopping mall: part critique of consumer capitalism, part wistful memory of media and retail spaces from the 1980s–2000s. Tempos are typically slow (roughly 60–90 BPM), harmonies tend toward lush seventh and extended chords, and rhythms range from barely perceptible loops to minimal, gated drum programming. Many tracks are short, vignette‑like studies in texture and mood.

Rap is a vocal music style built on the rhythmic, rhymed, and often improvised spoken delivery of lyrics over a beat. It emphasizes flow, cadence, wordplay, and narrative, and is commonly performed over sampled or programmed drum patterns and loops. Emerging from block parties and sound-system culture in the Bronx, New York City, rap became the core vocal expression of hip hop culture alongside DJing, breakdancing, and graffiti. While it is closely linked to hip hop, rap as a technique and genre has also crossed into pop, rock, electronic, and global regional scenes. Musically, rap favors strong drum grooves (breakbeats, 808 patterns), sparse harmony, and loop-based structures that foreground the MC’s voice. Lyrically, it spans party chants and battle brags to intricate internal rhymes, social commentary, reportage, and autobiography.

Vapor is an internet-born microgenre of atmospheric, half-time electronic trap that emphasizes space, texture, and emotive melody over aggression or technical flash. Its sonic palette leans on airy pads, crystalline bell and pluck leads, misty reverb tails, and round, subby 808s. Drums typically follow a modern trap grid at halftime, with sparse, syncopated hats and gentle percussion instead of hard-edged snares. Vocals, if present at all, are usually textural—chopped phrases, distant calls, or heavily processed one-shots—serving ambience rather than lyrical narrative. The result is a dreamy, nocturnal mood that sits between cloud rap, vaporwave aesthetics, and the UK-led "wave" scene: cinematic yet minimal, melancholic yet weightless, and designed as much for headphones as for late-night club systems.

Alternative is an umbrella term for non-mainstream popular music that grew out of independent and college-radio scenes. It emphasizes artistic autonomy, eclectic influences, and a willingness to subvert commercial formulas. Sonically, alternative often blends the raw immediacy of punk with the mood and texture of post-punk and new wave, adding elements from folk, noise, garage, and experimental rock. While guitars, bass, and drums are typical, production ranges from lo-fi to stadium-ready, and lyrics tend toward introspection, social critique, or surreal storytelling. Over time, “alternative” became both a cultural stance and a market category, spawning numerous substyles (alternative rock, alternative hip hop, alternative pop, etc.) and moving from underground circuits to mainstream prominence in the 1990s.

Experimental ambient is a textural, exploratory branch of ambient music that prioritizes sound design, space, and timbre over traditional melody, harmony, and rhythm. It often uses drones, field recordings, electroacoustic processing, and extended studio techniques to shape immersive sonic environments. Rather than following song forms, pieces evolve gradually, foregrounding subtle change, psychoacoustic detail, and the interplay between natural and synthetic sound sources. The result ranges from serene and contemplative to eerie and abstract, inviting deep listening and open-ended interpretation.