Tony Levin

Progressive deathcore is a fusion of deathcore’s crushing heaviness and breakdown-centric aggression with the adventurous songcraft, technicality, and textural breadth of progressive metal. Hallmarks include extended-range guitars (7–9 strings) in very low tunings, polymetric “djent”-leaning grooves, rapid meter changes, and long-form structures that move well beyond verse/chorus. You’ll hear a blend of palm‑muted syncopation, angular technical riffs, sweeping leads, and atmospheric keyboards or orchestration that add space between punishing passages. Vocals typically alternate between low growls, layered screams, and occasional clean passages; production is tight, modern, and punchy. Lyrically, the style often departs from deathcore’s horror tropes to explore sci‑fi, philosophy, cosmic imagery, and introspective themes, matching the music’s expansive, cinematic scope.

Jazz fusion (often simply called "fusion") blends the improvisational language and harmonic richness of jazz with the amplified instruments, grooves, and song forms of rock, funk, and R&B. It typically features electric guitars, electric bass or fretless bass, Rhodes electric piano, clavinet, analog and digital synthesizers, and a drum kit playing backbeat- and syncopation-heavy patterns. Hallmarks include extended chords and modal harmony, complex and shifting meters, brisk unison lines, virtuosic improvisation, and a production aesthetic that embraces effects processing and studio craft. The style ranges from fiery, aggressive workouts to polished, atmospheric textures, often within the same piece. Emerging in the late 1960s and flourishing through the 1970s, jazz fusion became a bridge between jazz audiences and rock/funk listeners, shaping later styles such as jazz-funk, smooth jazz, nu jazz, and parts of progressive and technical rock/metal.

Progressive rock is a rock subgenre that expands the genre’s formal, harmonic, and conceptual boundaries. It favors long-form compositions, intricate arrangements, and virtuosic musicianship, often drawing on Western classical, jazz, folk, and psychedelic idioms. Typical hallmarks include multi-part suites, shifting time signatures, extended instrumental passages, recurring motifs, and concept albums that present unified themes or narratives. The sound palette commonly features electric guitar, bass, and drums alongside an array of keyboards (Hammond organ, Mellotron, Moog/ARP synthesizers, piano), woodwinds or brass, and occasional orchestral additions. Lyrics often explore science fiction, mythology, philosophy, social commentary, and introspective themes.

Acoustic rock is a style of rock music built primarily around acoustic instruments—especially steel‑string acoustic guitars—while retaining rock’s song forms, rhythmic drive, and hook‑oriented choruses. Compared with folk or traditional singer‑songwriter material, acoustic rock tends to use stronger backbeats (often played with light drums or hand percussion), more prominent bass movement, and dynamic, chorus‑centric arrangements. The result is a warm, wood‑toned timbre with the energy and structures of rock, but without the distortion and heaviness typical of electric guitar‑led styles. The genre spans intimate solo performances to full‑band “unplugged” settings, often featuring strummed open chords, fingerstyle passages, vocal harmonies, and occasional alternate tunings or capo use to shape color and register.

Funk rock is a hybrid style that fuses the syncopated grooves, percussive rhythm guitar, and deep pocket of funk with the distorted riffs, power, and song forms of rock. Typical tracks feature tight, 16th‑note rhythmic interplay between bass, drums, and rhythm guitar, while lead guitars and vocals deliver rock’s edge and attitude. The harmony often stays close to dominant 7th (Mixolydian) colors and blues vocabulary, keeping the groove front and center. The style ranges from psychedelic and P‑Funk‑inflected experiments of the late 1960s and 1970s to the punchy alternative and crossover sounds of the 1980s and 1990s, and it continues to inform dance‑oriented rock and genre‑blending bands today.

Jazz rock is a hybrid style that merges the improvisational language and harmonic richness of jazz with the amplified energy, backbeat, and song forms of rock. It typically features electric guitar, bass, and drums alongside jazz-oriented instruments such as saxophone, trumpet, and keyboards, often arranged in horn sections. Extended chords, syncopation, and improvisation coexist with catchy riffs and driving grooves, yielding music that is both virtuosic and accessible. While closely related to jazz fusion, jazz rock generally keeps a stronger tie to rock songcraft and backbeat-centered rhythms.