add9 method
Returns a new T
adding a quality
9th.
Implementation
T add9([ImperfectQuality quality = ImperfectQuality.major]) =>
add(Interval.imperfect(Size.ninth, quality));
Returns a new T
adding a quality
9th.
T add9([ImperfectQuality quality = ImperfectQuality.major]) =>
add(Interval.imperfect(Size.ninth, quality));