[{"data":1,"prerenderedAt":4},["ShallowReactive",2],{"chart:grand-central":3},"title: Grand Central\ncomposer: John Coltrane\nstyle: Up Tempo Swing\nkey: Bbm\nform: AABA, 36 bars\n# analysis: 2026-10-31, rules v2; Bb minor\n\nsection: A1\n# area: Bb minor (A1 1 – B 7)\n1  | Fm7    # v of a minor key: Phrygian, the key's own notes (its ♭2 is a passing note)\n2  | Bbm7   # ii of the ii–V to Ab minor\n2  | Eb7    # V7\u002Fbvii in Bb minor: natural tensions\n3  | Abm7   # ii of the ii–V to F# minor\n3  | Db7    # V7\u002Fbvi in Bb minor: natural tensions\n4  | F#m7   # ii of B7: Dorian\n4  | B7     # tritone substitute: resolves down a half step to Bbm7\n5  | Bbm7   # tonic minor: Dorian by convention\n6  | B7#11  # tritone substitute: resolves down a half step to Bbm7\n7  | Bbm7   # tonic minor: Dorian by convention\n8  | B7#11  # tritone substitute: resolves down a half step to Bbm7\n9  | Bbm7   # tonic minor: Dorian by convention\n10 | Bbm7\n@ending 1 7 8\n@ending 2 9 10\n\nsection: B\n1  | F#m7   # ii of B7: Dorian\n1  | B7     # extended ii–V: a side-step, its own key\n2  | F#m7   # ii of B7: Dorian\n2  | B7     # extended ii–V: a side-step, its own key\n3  | F#m7   # ii of B7: Dorian\n3  | B7     # extended ii–V: a side-step, its own key\n4  | F#m7   # ii of B7: Dorian\n4  | B7     # extended ii–V: a side-step, its own key\n5  | F#m7   # ii of B7: Dorian\n5  | B7     # extended ii–V: a side-step, its own key\n6  | F#m7   # ii of B7: Dorian\n6  | B7     # tritone substitute: resolves down a half step to Bbm7\n7  | Bbm7   # tonic minor: Dorian by convention\n# area: A major (B 7–8)\n7  | E7     # V7 of A: natural tensions\n8  | AMaj7  # tonic: the 4th is in the key\n# area: Bb minor (B 8 – A2 12)\n8  | C7     # V7\u002Fv in Bb minor: b9 and b13 are in the key\n\nsection: A2\n1  | Fm7    # v of a minor key: Phrygian, the key's own notes (its ♭2 is a passing note)\n2  | Bbm7   # ii of the ii–V to Ab minor\n2  | Eb7    # V7\u002Fbvii in Bb minor: natural tensions\n3  | Abm7   # ii of the ii–V to F# minor\n3  | Db7    # V7\u002Fbvi in Bb minor: natural tensions\n4  | F#m7   # ii of B7: Dorian\n4  | B7     # tritone substitute: resolves down a half step to Bbm7\n5  | Bbm7   # tonic minor: Dorian by convention\n6  | B7#11  # tritone substitute: resolves down a half step to Bbm7\n7  | Bbm7   # tonic minor: Dorian by convention\n8  | B7#11  # tritone substitute: resolves down a half step to Bbm7\n9  | Bbm7   # tonic minor: Dorian by convention\n10 | B7#11  # tritone substitute: resolves down a half step to Bbm7\n11 | Bbm7   # tonic minor: Dorian by convention\n12 | Bbm7\n",1793575889159]