export default [
  {
    id: 'reggae-stir',
    name: 'Circular I–IV–V vamp',
    rn: ['I', 'IV', 'V'],
    degrees: [0, 5, 7],
    qualities: ['maj', 'maj', 'maj'],
    bars: [2, 1, 1],
    mode: 'major',
    songs: ['Stir It Up — Bob Marley & The Wailers'],
    tip: 'Not a cadence — a wheel: a full bar of I, then IV and V share a bar, forever. The V never "resolves"; it just hands back to the I.',
  },
  {
    id: 'reggae-two-chord',
    name: 'Two-chord I–IV vamp',
    rn: ['I', 'IV'],
    degrees: [0, 5],
    qualities: ['maj', 'maj'],
    bars: [2, 2],
    mode: 'major',
    songs: ['Lively Up Yourself — Bob Marley'],
    tip: 'Two chords for an entire song. The interest is the interlock — every instrument in its own time slot — not the harmony.',
  },
  {
    id: 'reggae-minor-vamp',
    name: 'Minor vamp (i–♭VII)',
    rn: ['i', '♭VII'],
    degrees: [0, 10],
    qualities: ['min', 'maj'],
    bars: [3, 1],
    mode: 'minor',
    songs: ['Get Up, Stand Up — Bob Marley', 'Them Belly Full — Bob Marley (chorus)'],
    tip: 'Get Up Stand Up is arguably ONE chord — the ♭VII is a passing breath, not a destination. Roots reggae treats harmony as a drone with occasional weather.',
  },
  {
    id: 'reggae-nwnc',
    name: 'Roots ballad (I–V⁶–vi–IV)',
    rn: ['I', 'V⁶', 'vi', 'IV'],
    degrees: [0, 7, 9, 5],
    qualities: ['maj', 'maj', 'min', 'maj'],
    bars: [1, 1, 1, 1],
    mode: 'major',
    songs: ['No Woman, No Cry — Bob Marley'],
    tip: 'Major key despite the tears: the V carries its 3rd in the bass (G/B in C), walking the bassline down by step into the vi. The descent is the emotion.',
  },
  {
    id: 'reggae-rocksteady',
    name: 'Rocksteady climb (I–ii–iii–ii)',
    rn: ['I', 'ii', 'iii', 'ii'],
    degrees: [0, 2, 4, 2],
    qualities: ['maj', 'min', 'min', 'min'],
    bars: [1, 1, 1, 1],
    mode: 'major',
    songs: ['Queen Majesty — The Techniques (1967)'],
    tip: 'Rocksteady grew from doo-wop covers, and it shows: a gentle diatonic staircase up and back at ~86 BPM. Soul harmony with the bass carrying the tune.',
  },
]
