[{"data":1,"prerenderedAt":4},["ShallowReactive",2],{"chart:pursuance":3},"title: Pursuance\ncomposer: John Coltrane\nstyle: Up Tempo Swing\nkey: Bbm\nform: A, 12 bars\n# analysis: 2026-10-31, rules v2; Bb minor\n\nsection: A\n1  | Bbm9  # tonic minor: Dorian by convention\n2  | Bbm9\n3  | Bbm9\n4  | Bbm9\n5  | Abm9  # a borrowed minor chord: Dorian, its own key\n6  | Abm9\n7  | Bbm9  # tonic minor: Dorian by convention\n8  | Bbm9\n9  | Gb9   # tritone substitute: resolves down a half step to F7#9\n10 | F7#9  # V7 of Bb minor: the b13 is in the key, b9, #9 and #11 from the symbol\n11 | Bbm9  # tonic minor: Dorian by convention\n12 | Bbm9\n",1793575898780]