def suspended_fourth_ninth(note): """Build a suspended fourth flat ninth chord on note. Example: >>> suspended_fourth_ninth('C') ['C', 'F', 'G', 'Db'] """ return suspended_fourth_triad(note) + [intervals.minor_second(note)]
def dominant_flat_ninth(note): """Build a dominant flat ninth chord on note. Example: >>> dominant_ninth('C') ['C', 'E', 'G', 'Bb', 'Db'] """ res = dominant_ninth(note) res[4] = intervals.minor_second(note) return res