Funk rock

History and character

Funk rock combines the groove of funk (bass in the lead role, sixteenth notes, syncopation, a rhythmic approach close to R&B) with the energy and distorted guitars of rock. It emerged in the United States between the late 1960s and the mid-1970s: Sly and the Family Stone (Thank You (Falettinme Be Mice Elf Agin)), The Jimi Hendrix Experience (Electric Ladyland), Parliament-Funkadelic with George Clinton's P-Funk concepts, Grand Funk Railroad, then Stevie Wonder, Prince, and in part Led Zeppelin (The Crunge, Trampled Under Foot) and Aerosmith (Walk This Way).

In the 1980s and '90s it boomed: Red Hot Chili Peppers (among the first to combine punk and funk; their second album Freaky Styley was produced by George Clinton), Fishbone, Living Colour, Faith No More, Jane's Addiction, Primus, and the funk metal of the early 1990s (Faith No More, Rage Against the Machine, who combine funk, metal, punk and hip hop, picking up the bass-driven funk hard rock of Grand Funk Railroad). In the 2000s and 2010s it continues with Lenny Kravitz, Jamiroquai (more acid jazz), the British revival and Prince's 3rdEyeGirl.

The sound: guitar with lighter, "crunchy" distortion compared with funk metal, slap and fingerstyle bass up front, drums with ghost notes and syncopated kick, rapped or sung vocals with lots of rhythm, repeated riffs on one or two chords.

Scales and keys

Dorian (the funk mode)

• Formula: 1 2 b3 4 5 6 b7 (W H W W W H W).
• Example in E: E F# G A B C# D.
• Characteristic note: major 6 (C#) → major IV (A) or IV7 (A7): the i7–IV7 groove.
• Chords: i Em7, ii F#m7, bIII Gmaj7, IV A7, v Bm7, vi° C#m7b5, bVII Dmaj7.
• Use: bass and guitar riffs, vamps on Em7, solos.
• Real example: Red Hot Chili Peppers — Give It Away (A minor according to SongBPM, riff with Dorian/blues colors); Jamiroquai — Virtual Insanity (more jazz).

Minor pentatonic and blues

• Formula: 1 b3 4 5 b7 / 1 b3 4 b5 5 b7. In E: E G A B D / E G A Bb B D.
• Use: slap bass riffs (octaves + b7 + 4), distorted RATM-style guitar riffs.
• Real example: Rage Against the Machine — Killing in the Name (drop D, pentatonic riff in D;

Mixolydian (dominant chords)

• Formula: 1 2 3 4 5 6 b7. In E: E F# G# A B C# D.
• Characteristic note: b7 and 3 together (E7, E9): the static dominant of funk.
• Use: vamp on a ninth chord (E9), rhythm guitar in sixteenth notes.
• Real example: Sly and the Family Stone — Thank You (dominant vamp in E).

7#9 chord (Hendrix chord)

• Formula: 1 3 5 b7 #9. In E: E G# B D G (Fx).
• Use: chord hits in funk rock, major/minor ambiguity.

"Major" blues scale (for bass lines)

• Formula: 1 2 b3 3 5 6. In E: E F# G G# B C#.
• Use: bass lines and licks with the b3→3 move.

How to choose

• Minor vamp: Dorian. Dominant vamp: Mixolydian with ninth and 13th chords. Heavy riff: pentatonic/blues. Funk lives on rhythm: the scale is chosen for the note that has to "land" on the one.

Harmony

Function

Static harmony: vamps on one chord (i7, I7, I9) or two (i7–IV7) for long sections; the movement is rhythmic, not harmonic. Cadences are rare; changes arrive in the bridges and choruses.

Chords

• Sevenths, ninths, 13ths (E9, A13, Em7), 7#9 chords, power chords in the rock parts, 2–3-note chords on the high strings (chicken scratch).

Riffs

• The bass riff is the harmony: the bass notes define the chord, the guitar adds rhythmic color.

Voicing

• Guitar: tight chords on strings 2-3-4 (E9 at the 7th fret), staccato in sixteenth notes with muted strums; distorted power chords in the choruses.
• Clavinet and electric piano with funk voicings, horns in sections.

Typical progressions

Rhythm and groove

4/4 on a sixteenth-note grid, with light swing (52–58% on the sixteenth notes in FL Studio) or straight; medium tempo (90–115). The groove is built on the interlocking of syncopated kick, bass and rhythm guitar in muted sixteenth notes; accents on the "one" (funk's "the One") and syncopations on the "2e" and "3a". Rests and stops are part of the groove. In funk metal, slightly heavier tempos with distorted guitars and kick in unison with the riff.

Drums

Role

Funk rock drumming is an interlocking groove: syncopated kick, strong snare with ghost notes, sixteenth-note hi-hat. Models: Chad Smith (RHCP), Brad Wilk (RATM), Will Calhoun (Living Colour), Mike Bordin (Faith No More), Prince/Sheila E.

Kick

• Syncopated: for example 1, "2a" (step 8), "3&" (step 11), "4e" (step 14) — x . . . . . . x . . x . . x . .
• In unison with the slap bass in the riffs.

Snare

• Strong backbeat on 2 and 4 (rimshot), ghost notes at velocity 20–40 on steps 7, 10, 15, 16; flams on the accents.

Hi-hat

• Sixteenth notes with accents on the eighth notes, openings on "4&" or "2&" (step 7 or 15) for the open hi-hat "slap"; one-handed eighth-note hi-hat in the more rock-oriented songs.

Percussion

• Occasional cowbell, tambourine, congas.

Interaction

• Bass and kick must coincide on the accents, while the guitar fills the free sixteenth notes.

Sections

• Groove verse with ghost notes; more rock chorus (eighth notes, crash, open hi-hat); half-time bridge or funk metal breakdown.

Fills

• Short, funky fills (snare–tom in sixteenth notes with flams), whole-band stops.

Sounds

• Dry kit, bright "crack" snare, short kick, bright hi-hats.

Typical mistakes

• Ghost notes that are too loud; rigid quantized grooves with no swing; too many cymbals.

Bass

Sound

Slap and pop bass (Flea with Music Man StingRay and Fender Jazz, Les Claypool, Fieldy in the later nu metal), percussive fingerstyle; bright sound with scooped mids (smile EQ) for slap, or round for fingerstyle; Tim Commerford (RATM) with a distorted sound and pick/fingers.

Notes and rhythm

• Octaves in sixteenth notes (thumb slap, index-finger pop), b7 and 4 of the pentatonic, percussive dead notes, slides.
• Riffs that are the song (RHCP's Give It Away, Higher Ground).

Relationship with the kick

Perfect interlocking: the slap thumb coincides with the kick, the pop with the snare or the sixteenth notes.

Examples

• Red Hot Chili Peppers — Give It Away; Primus — Jerry Was a Race Car Driver; Living Colour — Cult of Personality.

Harmonic instruments

Guitars

• Funk rhythm: Stratocaster (John Frusciante), muted sixteenth notes, tight ninth chords, wah (Hendrix, Frusciante), clean or light crunch.
• Funk metal: Tom Morello (Les Paul/Telecaster with DigiTech Whammy, kill switch, "DJ" effects), distorted riffs in drop D.
• Layering: funk rhythm guitar in the center or L40, distorted doubling in the choruses (L/R); Frusciante often doubled clean parts and backing vocals.

Keyboards and horns

• Clavinet, electric piano, organ, horn section (Fishbone, early RHCP records).

Voicing

• Ninth and 13th chords on 3 strings, power chords, double stops.

Melody and vocals

Vocals

• Rap and rhythmic singing (Anthony Kiedis, Zack de la Rocha, Mike Patton), powerful soul voices (Corey Glover), falsettos (Prince, Frusciante in the backing vocals).
• Rhythmic, syllabic, highly syncopated melodies; melodic choruses in contrast to rapped verses.

Backing vocals

• Falsetto backing vocals (Frusciante), gang vocals, responses.

Effects

• Dry, compressed vocal, slapback; distortion on the vocal in aggressive passages.

Instruments

• Electric bass (slap and fingerstyle).
• Electric guitar (funk rhythm, wah, distortion).
• Acoustic drums, cowbell, percussion.
• Vocals (rap and singing).
• Clavinet, electric piano, organ, horns (trumpet, sax, trombone).

Drum patterns

Synths and sounds

• Clavinet V — Funk clavinet: Sixteenth-note riffs with wah and AB pickups (Stevie Wonder, 1970s funk rock).
• Stage-73 V — Rhodes: Ninth chords and soul grooves in the bridges.
• B-3 V — Organ: Funk organ with Leslie and drive (Sly Stone, Billy Preston).
• Mini V — Synth bass: Funk synth bass (Parliament, Bernie Worrell): filtered saw or square with fast envelope and glide.
• Wurli V — Electric piano: A dirtier, more rock funk groove.

Song structure

Form (3:30–5:00)

Mixing and mastering

Sonic goal

Groove up front: bass and drums in the lead, crisp rhythm guitar, rhythmic and present vocal. Dry, punchy, with lively transients. References: Red Hot Chili Peppers — Blood Sugar Sex Magik (1991, Rick Rubin), Rage Against the Machine (1992), Living Colour — Vivid (1988).

Kick

• EQ: HP 35 Hz; +3 dB at 60–70 Hz; −4 dB at 350 Hz; +3 dB at 3–4 kHz.
• Compression 4:1, attack 15 ms, 3–4 dB; short and dry.

Snare

• EQ: +2 dB at 200 Hz; −2 dB at 800 Hz; +3 dB at 5 kHz.
• Compression: 1176 4 dB (the ghost notes must come through: possibly a second opto compressor or a parallel one); short room 0.6–0.9 s.

Hi-hat

• HP 400 Hz; +2 dB at 10 kHz; dynamics preserved.
• Drum bus: 3:1, 3 dB; tape saturation.

Bass

• Slap: HP 35 Hz; +3 dB at 70–80 Hz; −3/−4 dB at 400–600 Hz (scoop); +3/+4 dB at 2.5–4 kHz (pop and "clack").
• Compression: 1176 4:1 with fast attack to control the pops (6–8 dB), then LA-2A 2–3 dB; light limiter for pop peaks.
• High level: the bass is a soloist.

Guitars

• Funk rhythm: L30–40, HP 150 Hz, +2 dB at 2–3 kHz, compression 3–4 dB, short room. Distorted parts in the choruses L100/R100 with HP 90 Hz.
• Wah and solos: center, short delay.

Vocals

• Chain: EQ (HP 100 Hz, −2 dB at 300 Hz, +3 dB at 3–4 kHz) → 1176 (6 dB) → LA-2A (3 dB) → de-esser → light saturation.
• Rap: dry, strong presence, low slapback; doubles on key words (ad-libs L/R).

Horns and keyboards

• Horns L/R 40, HP 150 Hz, compression 3 dB; clavinet R30 with wah.

FX

• Short room, slapback, 1/8 delay on the throws.

Buses and groups

• "Rhythm" bus (bass + drums) with 2:1 glue for the groove.

Sidechain

• Bass from the kick (1–2 dB) only if the lows overlap.

Master

• Target: −9/−7 LUFS integrated; true peak −1 dBTP; preserve the transients (crest factor 8–10 dB).

Common mistakes

• Buried bass; inaudible ghost notes; rhythm guitar that is too distorted and full of lows; a master that squashes the slap.

Reference tracks for the mix

• Sly and the Family Stone — Thank You (1969); Living Colour — Cult of Personality (1988); Red Hot Chili Peppers — Give It Away (1991); Rage Against the Machine — Killing in the Name (1992); Faith No More — Epic (1989); Lenny Kravitz — Are You Gonna Go My Way (1993).

Reference listening

• Sly and the Family Stone — Thank You (Falettinme Be Mice Elf Agin) (1969)
• The Jimi Hendrix Experience — Crosstown Traffic (1968)
• Aerosmith — Walk This Way (1975)
• Living Colour — Cult of Personality (1988)
• Faith No More — Epic (1989)
• Red Hot Chili Peppers — Give It Away (1991)
• Rage Against the Machine — Killing in the Name (1992)
• Lenny Kravitz — Are You Gonna Go My Way (1993)
• Red Hot Chili Peppers — Can't Stop (2002)