quantise

Type: quantise :: (Functor f, RealFrac b) => b -> f b -> f b

quantise is useful for rounding a collection of numbers to some particular base fraction. For example,

quantise 5 [0, 1.3 ,2.6,3.2,4.7,5]

it will round all the values to the nearest (1/5)=0.2 and thus will output the list [0.0,1.2,2.6,3.2,4.8,5.0].

You can use this function to force a continuous pattern like sine into specific values. In the following example

d1 $ s "superchip*8" # n (quantise 1 $ range (-10) (10) $ slow 8 $ cosine) 
                     # release (quantise 5 $ slow 8 $ sine + 0.1)

all the releases selected be rounded to the nearest 0.1 and the notes selected to the nearest 1

quantise with fractional inputs does the consistent thing: quantise 0.5 rounds values to the nearest 2, quantise 0.25 rounds the nearest 4 &c.