The Melody Web what each genre heard, and what it passed on

heard passed on Click or tap a node to recenter. Use a connecting line, or Influence, for the story.

Heard

Blues genre · 1860–

Hard rock is electric blues played as rock spectacle: the same pentatonic boxes, bent thirds and sevenths, call-and-response licks, and 12-bar or I–IV–V cadences, now through stac…

Influence
British beat style · 1963–1966

Hard rock takes beat’s two-guitar riff and club volume and thickens them into a riff-led loud style.

Influence
British blues style · 1962–

Hard rock’s British wing keeps blues-club guitar as the lead voice and turns the volume and the riff into the product.

Influence
Psychedelic rock style · 1966–1969

Hard rock keeps psychedelia’s gain, sustain, feedback, and license to stretch a track, then aims them at riff, blues grammar, and touring volume rather than drone or collage.

Influence
Rock genre · 1964–

Hard rock keeps rock’s ensemble, backbeat, album form, and guitar-as-second-voice, then raises gain, volume, and riff density.

Influence

Hard rock

style · 1968–

Also called hardrock

Kind of Rock

The late-1960s loud wing of rock: riff-based songs, stacked distorted guitars, and blues-derived lead playing at club-to-arena volume. Cream, late Hendrix, the Yardbirds-to-Zeppelin line, Deep Purple, and early Grand Funk are the usual core. It is a style of rock, still inside blues song grammar (pentatonic leads, 12-bar or verse–chorus with blues cadences, shuffle or straight-eight grooves). Heavy metal is the split that leaves that grammar, not an alias of this file (Cope, Weinstein). Journalists often blur the two; this corpus does not. Theatrical 1970s bands (Queen) may also sit on Glam rock and Art rock for look and studio design; those are sibling files, not extra hops from this node. Garage-rock leftover as a 1960s amateur parent. Jazz leftover as guitarist testimony. Arena-rock leftover as a market tag. Local loud-rock leftovers stay unfiled.

Listen

  1. Sunshine of Your Love Cream (1967) YouTube · Spotify · Amazon
  2. Purple Haze The Jimi Hendrix Experience (1967) YouTube · Spotify · Amazon
  3. Whole Lotta Love Led Zeppelin (1969) YouTube · Spotify · Amazon
  4. Communication Breakdown Led Zeppelin (1969) YouTube · Spotify · Amazon
  5. Smoke on the Water Deep Purple (1972) YouTube · Spotify · Amazon
  6. Highway Star Deep Purple (1972) YouTube · Spotify · Amazon
  7. Voodoo Child (Slight Return) The Jimi Hendrix Experience (1968) YouTube · Spotify · Amazon
  8. White Room Cream (1968) YouTube · Spotify · Amazon
  9. Immigrant Song Led Zeppelin (1970) YouTube · Spotify · Amazon
  10. Black Dog Led Zeppelin (1971) YouTube · Amazon
  11. We Will Rock You Queen (1977) YouTube · Spotify · Amazon

Passed on

Glam metal style · 1981–1992

Glam metal re-imports hard rock’s song: verse–chorus hooks, mid-tempo swagger, and a party or romance lyric default.

Influence
Grunge genre · 1986–1996

Grunge takes hard rock’s distorted riff, doubled guitar, and high-volume singer and runs them in a punk/indie club.

Influence
Heavy metal genre · 1970–

Metal inherits hard rock’s working unit — distorted guitars, bass lock, kit, high volume, and the public guitar solo — then changes what a song is made of.

Influence
Neoclassical metal style · 1984–

Blackmore’s Rainbow-era leads already mix hard-rock song with harmonic-minor and “classical” quotation.

Influence
Speed metal style · 1982–1987

Speed metal takes Motörhead-type hard-rock volume, snarl, and even-eight rush as a tempo and timbre model beside Priest-range metal.

Influence

Blues → Hard rock

harmonymelodyphrase and lickform and structurestrength: highscholarly consensus1966–1972recordingoral

Mechanism

Hard rock is electric blues played as rock spectacle: the same pentatonic boxes, bent thirds and sevenths, call-and-response licks, and 12-bar or I–IV–V cadences, now through stacks of gain and longer solos. British musicians learn from Chicago and Delta records; the song often remains a blues even when the arrangement is an album riff.

Shared material

twelve-bar bluesprogressionI–I–I–I | IV–IV–I–I | V–IV–I–I

Donor You Shook Me (Muddy Waters, 1962) · verses YouTube · Spotify

Receiver You Shook Me (Led Zeppelin, 1969) · 12-bar frame YouTube

Same Willie Dixon / J.B. Lenoir song and cycle; hard rock adds volume, riff density, and a longer solo

Evidence

Cream and Hendrix repertories built on blues forms; Zeppelin’s Dixon-derived tracks and pentatonic soloing; Purple’s blues-rock tunes beside the organ riffs. Palmer’s electric-blues history is the longer path into this style.

Debate

How much is “blues” versus “rock that quotes blues.” For this node the blues grammar is still the default; the metal edge is the one that drops it.

Mediators

artist: Cream; artist: Jimi Hendrix; artist: Led Zeppelin

British beat → Hard rock

instrumentationtimbre and productionmeter and groovestrength: mediumscholarly consensus1964–1968recordingoral

Mechanism

Hard rock takes beat’s two-guitar riff and club volume and thickens them into a riff-led loud style. Strength medium. psychedelic rock hard rock is the long-form/fuzz hop; british blues hard rock is the blues-grammar hop; this file is the beat-combo riff hinge (Kinks, Who).

Evidence

You Really Got Me / My Generation against later Cream/Zeppelin loud riffing (Grove, Starr).

Debate

Whether this is already psychedelia. The 1966–68 color-and-expansion job is psychedelic rock’s; the two-chord power-riff is beat’s.

Mediators

artist: The Kinks; artist: The Who

British blues → Hard rock

phrase and lickinstrumentationperformance practicestrength: highscholarly consensus1966–1970oralrecording

Mechanism

Hard rock’s British wing keeps blues-club guitar as the lead voice and turns the volume and the riff into the product. Strength high. Cream and Zeppelin are the usual hinge.

Evidence

Bluesbreakers alumni in Cream; Zeppelin’s blues recasts; Starr and Grove on that wing.

Debate

Whether this is already psychedelic rock. Psych is the studio/color hop; this file is the guitar-volume hop.

Mediators

artist: Cream; artist: Led Zeppelin

Psychedelic rock → Hard rock

timbre and productionform and structureinstrumentationstrength: mediumwell documented1967–1970recordingoral

Mechanism

Hard rock keeps psychedelia’s gain, sustain, feedback, and license to stretch a track, then aims them at riff, blues grammar, and touring volume rather than drone or collage. Cream and Hendrix sit on both nodes: studio/psych color on one side, pentatonic spectacle on the other. Strength medium: blues and the rock umbrella are the heavier donors; this edge is the 1967–70 loud-psych path.

Evidence

Hendrix and Cream albums that are still psychedelic in mix and length but already tour as a louder style; late Yardbirds into Zeppelin. Starr’s late-1960s intensification.

Debate

Whether Cream and Hendrix “are” psychedelic or hard rock. The corpus allows both: the files split by job (studio/long-form color vs loud blues-rock), not by exclusive personnel.

Mediators

artist: Cream; artist: Jimi Hendrix

Rock → Hard rock

instrumentationtimbre and productionform and structuremeter and groovestrength: highscholarly consensus1967–1972recordingoral

Mechanism

Hard rock keeps rock’s ensemble, backbeat, album form, and guitar-as-second-voice, then raises gain, volume, and riff density. Taxonomically it is a rock style; this edge names the transferable craft. Strength high on the child.

Evidence

Dated late-1960s albums that are still blues-rock or psychedelic rock in form but already tour as a louder style (Cream, Hendrix, late Yardbirds). The later Zeppelin/Purple catalog stays inside this grammar.

Debate

Whether “hard rock” is only a market adjective. The corpus treats it as a named style because the metal split is unintelligible without a donor that is louder than 1964 beat and still blues-based.

Mediators

artist: Cream; artist: The Jimi Hendrix Experience

Hard rock → Glam metal

form and structuremeter and grooveperformance practicestrength: highwell documented1978–1986recordingradio

Mechanism

Glam metal re-imports hard rock’s song: verse–chorus hooks, mid-tempo swagger, and a party or romance lyric default. Van Halen is the technical and formal mediator (tapping, bright riffs, radio structures) without being a glam-metal band. Strength high on form and groove; the metal name and power-chord identity come from the other incoming edge.

Evidence

Strip bands covering or imitating Aerosmith/Van Halen pacing; power-ballad album architecture as hard-rock radio practice at metal volume.

Debate

Whether glam is “just hard rock with hair.” The corpus keeps both incoming edges: form from hard rock, genre identity and guitar-cadenza culture from metal (Weinstein, Walser).

Mediators

artist: Van Halen; artist: Aerosmith

Hard rock → Grunge

timbre and productionphrase and lickperformance practicestrength: highwell documented1986–1992recordingoral

Mechanism

Grunge takes hard rock’s distorted riff, doubled guitar, and high-volume singer and runs them in a punk/indie club. Strength high. Metal already supplies the Sabbath-side riff grammar; this hop is the Zeppelin/Purple blues-rock residue (Soundgarden, Pearl Jam). Alternative leftover as a market tag.

Evidence

Seattle oral history in Yarm; Sub Pop loud bands in Azerrad; Grove’s hard-rock line into grunge.

Debate

Whether this is already metal. Cope/Weinstein keep Zeppelin-class catalogs on hard rock; Seattle heard both files. The metal hop is the other parent.

Mediators

artist: Soundgarden; artist: Pearl Jam

Hard rock → Heavy metal

instrumentationtimbre and productionphrase and lickperformance practicestrength: highscholarly consensus1969–1974recordingoral

Mechanism

Metal inherits hard rock’s working unit — distorted guitars, bass lock, kit, high volume, and the public guitar solo — then changes what a song is made of. The riff is no longer an intro to a blues or pop chorus; it is the piece. Gain and down-tuning become harmonic facts. The same Midlands and U.S. circuit that booked loud rock books the first metal bands. Strength high: without hard rock there is no ensemble or timbre to recode.

Evidence

Sabbath’s personnel and first-album production sit in the 1969–71 hard-rock world; Cope’s analyses show the compositional break (modal/tritone riffs, dropped shuffle and 12-bar). Priest and the later British wave keep the hard-rock stagecraft (twins leads, leather, festival) after the song grammar has shifted. Weinstein treats the fan culture as distinct once the name sticks.

Debate

Journalism still files Zeppelin and Purple as metal. This corpus follows Cope and Weinstein: those catalogs remain hard rock unless a later cover or scene actually recodes them. The boundary is real and contested in popular use; the Debate is about labeling, not about whether Sabbath had hard-rock neighbors.

Mediators

artist: Black Sabbath; artist: Judas Priest

Hard rock → Neoclassical metal

phrase and lickmelodyperformance practicestrength: mediumwell documented1975–1984recording

Mechanism

Blackmore’s Rainbow-era leads already mix hard-rock song with harmonic-minor and “classical” quotation. Malmsteen hardens that into a style. Strength medium: the named 1984 object is metal, not Purple; the guitar dialect has this hinge.

Evidence

Rainbow records as homework Malmsteen and the shred press cite; the baroque/romantic edges explain the figures, this edge explains who played them through a stack first.

Debate

Whether Blackmore “is” neoclassical metal. The corpus keeps him on Hard rock as mediator.

Mediators

artist: Ritchie Blackmore

Hard rock → Speed metal

timbre and productionmeter and grooveperformance practicestrength: mediumwell documented1979–1983recordingoral

Mechanism

Speed metal takes Motörhead-type hard-rock volume, snarl, and even-eight rush as a tempo and timbre model beside Priest-range metal. Strength medium. Motörhead stays a mediator, not a second style node.

Evidence

Accept/early Helloween against Motörhead 1979–82 records (Waksman, Weinstein).

Debate

Whether Motörhead is already metal. The blues-derived loud trio is hard rock’s; the named 1980s speed-metal hinge is this hop.

Mediators

artist: Motörhead