====== function: add ======

===== Description =====

This is a method for the RhythmPattern class. It takes a RhythmPattern object and then creates a player, rhythmMap, and maskMap in the specified MusicalEnvironment.

===== Syntax =====

RhythmPattern.add(MusicalEnvironment)

===== Parameters =====



===== Return Value =====

===== Example =====