[{"data":1,"prerenderedAt":4},["ShallowReactive",2],{"chart:charleston":3},"title: Charleston\ncomposer: James Johnson\nstyle: Medium Up Swing\nkey: Bb\nform: ABAC, 32 bars\n# analysis: 2026-10-31, rules v2; Bb\n\nsection: A1\n# area: Bb major (A1 1 – B 5)\n1 | Bb      # tonic: the 4th is in the key\n2 | D7      # extended dominant: each one falls a fifth into the next: natural tensions\n3 | G7      # extended dominant: each one falls a fifth into the next: natural tensions\n4 | G7\n5 | C7      # V7 of V7: the dominant of the dominant: natural tensions\n6 | F7      # V7 of Bb: natural tensions\n7 | Bb      # tonic: the 4th is in the key\n7 | Dbdim7  # passing diminished: C7♭9 without its C, the F7's dominant (Cm7 its ii)\n8 | Cm7     # ii of the ii–V to Bb\n8 | F7      # V7 of Bb: natural tensions\n\nsection: B\n1 | Bb      # tonic: the 4th is in the key\n2 | D7      # extended dominant: V7 of G7\n3 | G7      # VI7 in Bb, not resolving: the b13 is in the key\n4 | Edim7   # passing diminished: A7♭9 without its A, the Dm7's dominant; not functioning diatonically: the symmetric scale\n5 | Dm7     # iii: Phrygian, the key's own notes (the ♭2 is a passing note)\n# area: D major (B 6–7)\n6 | A7      # V7 of D: natural tensions\n7 | D       # tonic: the 4th is in the key\n# area: Bb major (B 8 – C 8)\n8 | F7      # V7 of Bb: natural tensions\n\nsection: A2\n1 | Bb      # tonic: the 4th is in the key\n2 | D7      # extended dominant: each one falls a fifth into the next: natural tensions\n3 | G7      # extended dominant: each one falls a fifth into the next: natural tensions\n4 | G7\n5 | C7      # V7 of V7: the dominant of the dominant: natural tensions\n6 | F7      # V7 of Bb: natural tensions\n7 | Bb      # tonic: the 4th is in the key\n7 | Dbdim7  # passing diminished: C7♭9 without its C, the F7's dominant (Cm7 its ii)\n8 | Cm7     # ii of F7: Dorian\n8 | F7      # extended dominant: V7 of Bb7\n\nsection: C\n1 | Bb7     # extended dominant: V7 of Eb7\n2 | Bb7\n3 | Eb7     # IV7 in Bb, not resolving: the #11 is in the key\n4 | Ebm7    # iv7 from the parallel minor: Dorian, its notes\n5 | Bb      # tonic: the 4th is in the key\n5 | Gm7     # vi: Aeolian, the key's own notes (the ♭6 is a passing note)\n6 | Cm7     # ii of the ii–V to Bb\n6 | F7      # V7 of Bb: natural tensions\n7 | Bb      # tonic: the 4th is in the key\n8 | Cm7     # ii of the ii–V to Bb\n8 | F7      # V7 of Bb: natural tensions\n",1793575884873]