Music.Time.Duration

Documentation

module Music.Time.Transform

The HasDuration class

class HasDuration a where

Class of values that have a duration.

Law Duration

 _duration x = (offset x .-. onset x)

Methods

_duration :: a -> Duration

Instances

HasDuration Span

HasDuration Time

HasDuration Duration

(HasPosition a, HasDuration a) => HasDuration [a]

HasDuration a => HasDuration (Sum a)

HasDuration a => HasDuration (Product a)

HasDuration a => HasDuration (Min a)

HasDuration a => HasDuration (Max a)

(HasPosition a, HasDuration a) => HasDuration (Bound a)

HasDuration a => HasDuration (AddMeta a)

HasDuration (Stretched a)

HasDuration (Voice a)

HasDuration (Delayed a)

HasDuration (Chord a)

HasDuration (Track a)

HasDuration (Note a)

HasDuration (Score a)

HasDuration (Rhythm a)

(HasDuration a, HasDuration b) => HasDuration (Either a b)

HasDuration a => HasDuration (a, b)

HasDuration b => HasDuration (a, b, c)

Absolute duration

duration :: (Transformable a, HasDuration a) => Lens' a Duration

Access the duration.

stretchTo :: (Transformable a, HasDuration a) => Duration -> a -> a

Stretch a value to have the given duration.