Environment:      Siren
Superclass:         Siren.Chronos
Category:         Music-Models-Representation

Instances of the Meter species model the tempo or metronome used to map durations.
This class can be used as a concrete one (adding a few methods to fill it out), or like the other representational classes (making concrete classes of this species).
In the later case, the value instance variable could hold a number, process or block.

MetaClass:         Meter class