Soul

History and character

Soul emerged in the United States between the late 1950s and the early 1960s in African American communities, from the meeting of gospel (the church's vocal style and call and response) and rhythm and blues. Ray Charles with "I Got a Woman" (1954) is often cited as the starting point; Sam Cooke, a former gospel singer with the Soul Stirrers, brings elegance and pop songwriting ("You Send Me", 1957; "A Change Is Gonna Come", 1964); Solomon Burke, Jackie Wilson, Ben E. King and James Brown widen the field.

In the 1960s soul organizes itself into schools: Southern soul from Memphis (Stax: Otis Redding, Sam & Dave, Carla Thomas, with Booker T. & the M.G.'s and the Memphis Horns) and Muscle Shoals (FAME, Percy Sledge, Aretha Franklin for Atlantic in 1967 with "I Never Loved a Man"), the Detroit pop sound (Motown), Chicago soul (Curtis Mayfield & the Impressions), and English Northern soul as a club scene. In the 1970s come "auteur" and social soul (Marvin Gaye "What's Going On" 1971, Stevie Wonder, Curtis Mayfield "Superfly", Donny Hathaway, Bill Withers, Al Green with Willie Mitchell at Hi Records), orchestral Philly soul, and psychedelic soul (the Temptations with Norman Whitfield).

The aesthetic: voice at the center, church-bred emotional intensity, dynamics that build within the song, a live band with a horn section and a solid backbeat. Soul is the direct root of funk, disco, contemporary R&B, neo soul (1990s: D'Angelo, Erykah Badu) and modern retro soul (Amy Winehouse, Sharon Jones, Leon Bridges, Silk Sonic).

Scales and keys

Major (Ionian)

• Formula: 1 2 3 4 5 6 7 — T T S T T T S.
• Example on C: C D E F G A B.
• Characteristic note: the major 7 (B) leading to the tonic and the stable 3: it is the basis of soul songs in major.
• Diatonic chords: C (I), Dm7 (ii7), Em7 (iii7), F (IV), G7 (V7), Am7 (vi7), Bø7 (viiø7).
• Use: verse and chorus melodies; backing vocals in thirds and sixths.
• Real-world example: Ben E. King — Stand by Me (A major, I–vi–IV–V progression); Sam Cooke — You Send Me.

Major pentatonic with gospel b3 ("major blues")

• Formula: 1 2 b3 3 5 6 — T S S 3S T 3S.
• Example on C: C D Eb E G A.
• Characteristic note: the b3 sliding into the 3 (Eb → E): it is the gospel "cry" inside a major key.
• Use: melismas, ad-libs, piano and guitar fills; the b3 is almost always sung as an appoggiatura on the 3.
• Real-world example: Aretha Franklin — Respect (ad-libs); Otis Redding — Try a Little Tenderness (ending).
• Common mistakes: holding a long Eb over a full C major chord in the backing vocals: it clashes.

Minor pentatonic and blues scale

• Minor pentatonic: 1 b3 4 5 b7; on A: A C D E G. Blues: 1 b3 4 b5 5 b7; on A: A C D Eb E G.
• Characteristic note: b7 and b3 (G and C) and the passing b5 (Eb).
• Use: the grittiest phrases, even over major chords (C major with a melody on the C minor pentatonic): this is the blue-note clash of soul.
• Real-world example: Otis Redding, Wilson Pickett — In the Midnight Hour (E major with minor pentatonic phrases).

Mixolydian

• Formula: 1 2 3 4 5 6 b7 — on G: G A B C D E F.
• Characteristic note: the b7 (F). Chords: G7 (I7), Am7, Bø7, C (IV), Dm7 (v), Em7, F (bVII).
• Use: the soul closest to R&B and funk (Wilson Pickett, Sam & Dave), I7–IV7 progressions, bVII–IV–I riffs.
• Real-world example: Sam & Dave — Soul Man (guitar riff on the dominant).

Dorian

• Formula: 1 2 b3 4 5 6 b7 — on D: D E F G A B C. Characteristic note: the major 6 (B).
• Use: 1970s minor soul (Marvin Gaye, Curtis Mayfield) over i7–IV7 vamps; for example Curtis Mayfield — Move On Up and the Superfly vamps.

Harmonic minor (over the dominant)

• Formula: 1 2 b3 4 5 b6 7 — on A: A B C D E F G#. Characteristic note: the major 7 (G#) with the b6: the augmented second F–G#.
• Use: only over the V7 (E7, E7b9) of minor soul ballads, to return to i.

How to choose

Harmony

Harmonic function

Soul is tonal song harmony, enriched by the language of the church: plagal cadences, seventh chords, passing chords and a moving bass. Ballads often use the doo-wop progression (I–vi–IV–V) and its variants; up-tempo tunes are closer to R&B (I7–IV7, 12- or 16-bar blues).

Cadences

• IV–I plagal and iv–I (with minor borrowing) in endings and gospel intros.
• ii–V–I and V/V (secondary dominants: D7 in C) in the more "uptown" ballads.
• bVII–IV–I (Mixolydian borrowing) in Stax riffs.
• Deceptive V–vi to extend the chorus.

Gospel chords

• IV/V (F/G in C): a soft, "suspended" dominant.
• I/3 – IV (C/E – F) and IV – #iv° – I/5 (F – F#dim7 – C/G): ascending chromatic bass.
• iii7 – VI7 – ii7 – V7 as a turnaround.
• Seventh chords on every degree in ballads (Cmaj7, Am7, Dm7, G7sus).

Harmonic rhythm and dynamics

1–2 chords per bar in the verses, slower in the choruses. Modulation up a half step or a whole step for the last chorus. The final vamp (repeating the hook over 2–4 chords) is the place for ad-libs.

Voicing

Gospel piano in inversions (high triads with an octave in the left hand), organ with sustained chords and chromatic passing tones, guitar with double stops in thirds/sixths and arpeggios (Cropper, Bobby Womack), horns in closed 3-part harmony.

Typical progressions

Rhythm and groove

Feel

Strong backbeat on 2 and 4, often with the snare slightly behind the beat (Al Jackson Jr.). Mid-tempo soul has eighth notes with a light swing; ballads are often in 12/8 (four beats divided into triplets), with the piano playing every triplet; up-tempo tunes (Wilson Pickett, Sam & Dave) are in straight eighth notes with a strong accent on the backbeat.

Accents and drive

• Handclaps and tambourine double the backbeat.
• The horns play syncopated accents (on the "&" of 4 leading into the one).
• In Southern soul the groove is "relaxed and heavy": the band never rushes.

Building dynamics

The soul song builds: an intimate verse, a full chorus, a last chorus with modulation and ad-libs. The rhythm section follows the voice (rubato in the intros, a stop before the last chorus).

Microtiming

Backbeat 10–20 ms late in Stax drumming; bass and kick precise on the one; free vocals (singing ahead of and behind the beat).

Drums

Principle

Soul drumming is simple and heavy: it keeps time for the voice, with an unmistakable backbeat and very few extra notes. Al Jackson Jr. (Stax) is the model: "the human metronome", essential, with the snare slightly late.

Kick

• Mid-tempo: 1 and the "&" of 3 (pos. 1 and 11) or 1 and 3 (pos. 1 and 9).
• Up-tempo: 1, the "&" of 2, 3 to push.
• 12/8 ballads: on the 1 and the 3 of the four beats.

Snare

• Backbeat on 2 and 4, velocity 115–127, big sound with little tail (damped).
• Ghost notes are rare; in their place, cross-stick in ballad verses.
• In ballads: snare only on 3 (half-time) in some verses, then on 2 and 4.

Hi-hat and cymbals

• Eighth notes on the hi-hat, accents on the quarter notes; in ballads, triplets on the hi-hat or ride.
• Cymbals only at section starts; ride in the final choruses.

Percussion

Tambourine on 2 and 4 (or on the eighth notes in the choruses), handclaps on the backbeat, sometimes shaker. Congas in 1970s soul.

Velocity and dynamics

Constant backbeat; kick 90–110; hi-hat 60–90 with accents; build by section (lighter verse, full chorus).

Interaction

The bass plays with the kick on the one and answers the voice; the drums leave space for the horns (no fills where there are stabs). The chorus snare opens up with cymbals and tambourine.

Sections

• Intro: often just drums or a snare fill.
• Verse: closed hat, cross-stick (ballads) or a light backbeat.
• Chorus: full snare, tambourine, crash.
• Bridge: stops or half-time.
• Ending: crescendo, more frequent fills, vamp with ad-libs.

Fills

Short, on the snare in eighth notes or triplets (12/8), often a 2–3 stroke "pickup" before the chorus. In ballads, slow tom fills in triplets.

Sounds

1960s kit tuned medium, snare with a cloth on it, kick with a blanket; little reverb on the drums (Stax: the room of the former movie theater).

Typical mistakes

Drums that are too "full" and cover the voice, long rock fills, rigid quantization, a backbeat that is too far ahead (it loses weight), sixteenth-note hats where eighth notes are enough.

Bass

Sound

Fender Precision with flatwound strings, played with the fingers or the thumb; recorded DI or with a miked amp. Round, short sound (few harmonics above 2 kHz).

Register and kick

Between E1 and E3. On the one with the kick; long notes under the verses, more movement in the choruses.

Notes

Root and fifth, octaves, diatonic and chromatic passing tones toward the new chord, anticipation of the next chord on the "&" of 4. In ballads, lines that descend by step (C–B–A–G) under the progression.

Examples

Donald "Duck" Dunn (Stax: Otis Redding, Sam & Dave), James Jamerson (Motown), Tommy Cogbill and David Hood (Muscle Shoals), Chuck Rainey (Aretha), Leroy Hodges (Hi Records, Al Green).

Harmonic instruments

• Hammond organ: gospel pads, swells, sustained chords with Leslie; in ballads it acts as a "choir" (Booker T. Jones, Spooner Oldham).
• Piano: triplets in 12/8, chords in inversion, gospel fills with the right hand.
• Guitar: arpeggios, double stops in thirds/sixths, fills between the vocal phrases (Steve Cropper, Bobby Womack, Jimmy Johnson); little distortion.
• Horns: trumpet and sax in tight harmony, stabs, long "pad" phrases in ballads (Memphis Horns).
• Strings: from 1970s soul (Isaac Hayes, Curtis Mayfield, Al Green), long lines and answers.
• Wurlitzer and Rhodes: 1970s color.

Melody and vocals

Lead vocal

Soul is above all the voice: full chest tone, mix passages and belting in the choruses, shouts and "growls" (Otis Redding, Wilson Pickett), gospel melismas on the pentatonics, bent notes. Typical range: soul tenors up to A4–C5, women singers D3–F5 (Aretha up to beyond that). The verse melody is restrained; the chorus opens up by a fourth or a fifth; in the ending it is improvised.

Backing vocals

Call and response with the soloist; 3-part female backing vocals (Sweet Inspirations), sustained "oohs" and "aahs", repeated answers to the hook.

Ad-libs and dynamics

The singer starts restrained and ends at full power: the last 16–32 bars are ad-libs over the vamp.

Effects

Plate or medium echo chamber, slap delay 80–120 ms, vocal in mono at the center.

Instruments

• Lead vocal and backing vocals
• Acoustic drums, tambourine, handclaps
• Electric bass (Precision with flatwound strings)
• Electric guitar (Telecaster, semi-hollow)
• Hammond organ, piano, Wurlitzer, Rhodes
• Horns: trumpet, tenor sax, baritone sax, trombone
• Strings (1970s soul)
• Percussion: congas, shaker, vibraphone (Motown and Chicago)

Drum patterns

Synths and sounds

• B-3 V — Gospel organ: Drawbars 888000000 for the pad, 886000000 for brighter soul; Leslie slow in the verses, fast in the choruses; moderate drive.
• Piano V — Piano: Upright or slightly bright grand piano, for ballad triplets and gospel fills.
• Wurli V — Wurlitzer: The sound of Ray Charles and of 1960s–'70s soul: slow tremolo, a little drive.
• Stage-73 V — Rhodes: maj7 and m9 chords in 1970s soul (Marvin Gaye, Bill Withers).
• Augmented Strings — Strings: String section for 1970s soul: legato, soft filter, long hall.
• Solina V — Budget strings: Vintage string pad under the choruses.

Song structure

Soul song form

• Intro 4–8 (often a drum fill, horn hit or guitar arpeggio).
• Verse 1 (8–16) – Chorus (8) – Verse 2 (8–16) – Chorus (8) – Bridge (8) – Chorus ×2 (often modulated) – Vamp/coda with ad-libs (8–32) – fade.
• Length 2:30–4:00 (1960s), 4:00–6:00 (1970s).

Blues and AAB form

Up-tempo tunes often use 12 or 16 bars (R&B form) with the chorus on the IV.

Section-by-section arrangement

• Verse: drums, bass, guitar or piano, organ in the background.
• Pre-chorus/chorus: horns, backing vocals, tambourine.
• Bridge: stop, harmonic change, solo voice with organ.
• Ending: the whole band, vocal ad-libs, horns in "shout".

Mixing and mastering

Sonic goal

Voice at the center and up front, a warm band that sounds "in the room", round bass, drums with a crisp backbeat. A dynamic mix: −14/−12 integrated LUFS for classic soul, −11/−9 for modern retro soul (Amy Winehouse "Back to Black" and the Daptone records are references for a vintage sound recorded today). Many 1960s records were mono or had "blocky" stereo (drums on the left, vocal in the center, horns on the right): choose according to the aesthetic.

Kick

• EQ: HP 40 Hz; 60–80 Hz +2 dB; cut 300 Hz −3 dB; beater at 2–3 kHz +1 dB (not too modern).
• Compression: 4:1, attack 20 ms, release 80 ms, 2–4 dB. Tape to round it off. Center.

Snare

• EQ: HP 100 Hz; 200 Hz +2 dB; 800 Hz −2 dB if it sounds "boxy"; 5 kHz +2 dB.
• Compression: 1176 or VCA 4:1, attack 5 ms, release 60 ms, 3–5 dB.
• Reverb: plate or chamber 1.2–1.8 s, pre-delay 20 ms, filtered return (HP 200 Hz, LP 6–8 kHz). The reverb is part of the soul snare sound.

Hi-hat, tambourine, handclaps

• Hi-hat HP 400 Hz; tambourine HP 500 Hz with presence at 6–8 kHz, pan 30–50% opposite the hi-hat.
• Handclaps doubled L/R, room reverb.

Bass

• EQ: HP 35 Hz; 80–100 Hz +2 dB; cut 2–3 kHz if the flatwounds produce noise; 700 Hz +1 dB for definition.
• Compression: LA-2A 4–6 dB (slow opto attack), optionally 1176 2 dB.
• Saturation: light tube/tape. Mono, center.

Guitars, organ, piano, horns, strings

• Guitar: HP 120 Hz, presence 3 kHz, spring reverb or amp tremolo; pan 30–50%.
• Organ: HP 70 Hz, cut 400–600 Hz, wide stereo Leslie; pull it down in the verses (automation).
• Piano: HP 60 Hz, cut 300 Hz, 4 kHz +1 dB for the triplets; moderate stereo pan (not too wide).
• Horns: bus with 2–3 dB compression, HP 100 Hz, presence 2 kHz, plate 1–1.5 s; blocked or fanned-out pan.
• Strings: HP 150 Hz, air 10 kHz, wide, hall 2 s with pre-delay 30–40 ms.

Lead vocal

• EQ: HP 80 Hz; cut 300 Hz −2 dB; presence 2.5–4 kHz +2/+3 dB; air 10–12 kHz +1 dB; de-esser 6 kHz.
• Compression in series: 1176 (4:1, attack 3–5, release 7, 3–5 dB on peaks) → LA-2A (3–4 dB). The soul voice has 20–30 dB of dynamics between whisper and shout: also use volume automation before the compressor.
• Saturation: tape (Waves J37, UAD Studer) or tube preamp.
• Space: plate 1.5–2 s pre-delay 40–60 ms; mono slap 90–120 ms with low feedback; quarter-note delay throw on the last words.

Backing vocals

HP 150 Hz, compression 6 dB, EQ with less presence than the lead (−2 dB at 3 kHz), doubles L/R 60–90%, longer reverb.

FX

A shared echo chamber/plate for vocal and snare (cohesion), spring for guitar, slap for vocal.

Buses and groups

Drum bus 2–3 dB (SSL 4:1 attack 30 ms), horn bus, backing vocal bus; music bus with 1–2 dB and tape. Light compression on the mix.

Sidechain

Not necessary; at most dynamic ducking of the pads/organ from the voice (1–2 dB, dynamic Pro-Q 3 at 1–3 kHz).

Master

Chain: EQ (optional Pultec: +1 dB at 60 Hz, +1 dB at 10 kHz) – bus compressor 2:1 1–2 dB – tape – soft limiter. Target −14/−11 integrated LUFS for classic, −10/−9 for modern, true peak −1 dBTP. Keep the final choruses 1–3 LU above the verses (short-term loudness should grow over the song).

Common mistakes

Compressed, flat vocals that lose the emotion, an organ that fills 300–600 Hz and muddies everything, modern reverb that is too bright, a modern "rock" drum sound with a clicky kick, a mix that is too wide and loses the center.

Reference tracks for the mix

Otis Redding — (Sittin' On) The Dock of the Bay; Aretha Franklin — I Never Loved a Man; Al Green — Let's Stay Together; Amy Winehouse — Back to Black; Leon Bridges — Coming Home; Silk Sonic — Leave the Door Open.

Reference listening

• Ray Charles — I Got a Woman (1954)
• Sam Cooke — A Change Is Gonna Come (1964)
• Otis Redding — Try a Little Tenderness (1966)
• Percy Sledge — When a Man Loves a Woman (1966)
• Aretha Franklin — I Never Loved a Man (The Way I Love You) (1967)
• Sam & Dave — Soul Man (1967)
• Otis Redding — (Sittin' On) The Dock of the Bay (1968)
• Marvin Gaye — What's Going On (1971)
• Al Green — Let's Stay Together (1971)
• Bill Withers — Lean on Me (1972)
• Amy Winehouse — Back to Black (2006)
• Leon Bridges — Coming Home (2015)