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JamBuddy/src/data/kb/gospel/progressions.js
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vadimwit 71d5e445c7 kb: add gospel guitar pack (task P-01)
5 gospel progressions x 2 plays: cascading 2-5-1s, 6-2-5-1 + plagal Amen, IV-#iv°7-I
passing dim, modern sus/9th praise vamp, iii-vi back-door. Shell/sus/9th voicings, all
pitch-class-verified. Registered in kb/index.js. Validator: 9 styles / 45 progressions /
90 plays. Critic PASS.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-06-15 00:54:44 +01:00

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// Gospel progressions. Moves and theory verified against:
// hearandplay.com (6-2-5-1 turnaround, #4-diminished resolution, Amen cadence),
// pianogroove.com (gospel passing chords / hymn reharmonization),
// gospelmaps.com "Top 10 Gospel Chord Progressions",
// Wikipedia: Plagal cadence, Backdoor progression.
// Song references are kept honest: where a single definitive recording isn't
// certain, the move is described by its standard use in the tradition.
export default [
{
id: 'gospel-cycle-251',
name: 'Cascading 251s (cycle of dominants)',
rn: ['iii7', 'VI7', 'ii7', 'V7', 'Imaj7'],
degrees: [4, 9, 2, 7, 0],
qualities: ['min7', 'dom7', 'min7', 'dom7', 'maj7'],
bars: [1, 1, 1, 1, 2],
mode: 'major',
songs: ['traditional gospel turnaround', 'His Eye Is on the Sparrow (reharmonized)'],
tip: 'Every root falls a fifth and the off-diatonic VI7 pushes hard to ii — chain two iiV cells back to back and the ear is dragged home. Voice-lead the 3rds and 7ths and your hand barely moves.',
},
{
id: 'gospel-amen-625',
name: '6251 turnaround into the Amen',
rn: ['vi7', 'ii7', 'V7', 'Imaj7', 'IV', 'Imaj7'],
degrees: [9, 2, 7, 0, 5, 0],
qualities: ['min7', 'min7', 'dom7', 'maj7', 'maj', 'maj7'],
bars: [1, 1, 1, 1, 1, 2],
mode: 'major',
songs: ['traditional hymn endings', "I'll Fly Away (turnaround/tag)"],
tip: 'The 6251 is the gospel turnaround — the extended cousin of the 251 that returns you from chorus to verse. Tag it with the plagal IVI "Amen" for the classic church ending.',
},
{
id: 'gospel-iv-passing-dim',
name: 'IV#iv°7I (passing diminished)',
rn: ['Iadd9', 'IV', '#iv°7', 'Iadd9'],
degrees: [0, 5, 6, 0],
qualities: ['add9', 'maj', 'dim7', 'add9'],
bars: [2, 1, 1, 2],
mode: 'major',
songs: ['gospel hymn reharmonization', 'Amazing Grace (passing-chord arrangement)'],
tip: 'The #iv°7 is a chromatic passing chord linking IV back to I (bass walks 4 → #4 → 5/1). It is almost a signature of the gospel sound — one borrowed diminished and a plain hymn turns into church.',
},
{
id: 'gospel-sus-vamp',
name: 'Modern praise vamp (6451, sus/9th)',
rn: ['vi7', 'IVadd9', 'Vsus4', 'Iadd9'],
degrees: [9, 5, 7, 0],
qualities: ['min7', 'add9', 'sus4', 'add9'],
bars: [1, 1, 1, 1],
mode: 'major',
songs: ['Every Praise — Hezekiah Walker (vamp feel)', 'contemporary gospel/CCM praise loop'],
tip: 'Contemporary gospel leans on open sus and add9 colour instead of plain triads — the suspended 4th over V never fully resolves, keeping the vamp hovering and "lifting". Loop it; the tension is the point.',
},
{
id: 'gospel-backdoor',
name: 'iiivi with the back door (♭VII7→I)',
rn: ['iii7', 'vi7', '♭VII7', 'Imaj7'],
degrees: [4, 9, 10, 0],
qualities: ['min7', 'min7', 'dom7', 'maj7'],
bars: [1, 1, 1, 1],
mode: 'major',
songs: ['gospel/soul turnaround', 'standard back-door cadence (e.g. Tenderly, bars 57)'],
tip: 'iii→vi is a soft diatonic drop; the ♭VII7 is the "back door" — a borrowed dominant a whole step below I that resolves up by step instead of down a fifth. A warmer, less expected way home than V7.',
},
]