Environment:      Siren
Superclass:         Siren.NumericalMagnitude
Category:         Music-Models-Implementation
Instance variables:   relative

Instances of the RatioMagnitude subclasses are fractional values relative to some context-defined reference value--their relative. The relative may be provided, or it may be assumed if uninitialized (e.g., for a default whole note's duration or default reference pitch).

Instance Variable:
   relative       the reference value

accessing

realValue
   Answer the receiver's value mapped to the receiver.

value
   Answer the receiver's value mapped to the receiver.

converting

asRatio
   Answer self.

map
   Apply the receivers reference.

relativeTo: aRelative
   Set the receivers reference.

MetaClass:         RatioMagnitude class

instance creation

value: aValue relative: aMMagnitude
   Answer and instance with the argument as its value.