A constant is an unchanging value i.e. cannot be manipulated through mathematical operations. To create one, simply use the const constructor and the value you want to keep constant:
>>> value = const(10) >>> print(value + 4) 10 >>> print(value * 100) 10 >>> print(value / 99) 10
These can be really useful for shifting entire sequences of values except one or two:
p1 >> pluck([0, 4, const(7), const(6)], dur=1/2) + var([0, -2, -4])
Constants can also be used in a PGroup to create constant notes in moving chord sequences:
p1 >> pluck(var([0, -3, -2, -4], 4), dur=1/2) + (0, 2, const(4))
