code: public Object getAttributeObject(ScoreAttribute sa) {
  		Object ret = m_attributes.get(sa.getName());
  		if (ret == null)
  			ret = sa.getDefaultValue();
  		return ret;
  	}
docs: Returns the object associated to an attribute
  
  @return an object or <TT>null</TT> if attribute has not been defined.
  @see #getAttributeSize(ScoreAttribute)