Prefer a->PlayCommand(b) to COMMAND(a,b). COMMAND tries

to load commands from metrics if they don't exist.  That's
a leftover from older code, before we could load all commands
at load time.  Now it's a bit confusing, causes us to
spend time loading things after we're already rendering,
and causes error dialogs that should happen during load
to happen later.

stepmania/src/WheelBase.cpp

@@ -363,7 +363,7 @@ void WheelBase::TweenOnScreenForSort()
 
 	m_WheelState = STATE_FLYING_ON_AFTER_NEXT_SORT;
 
-	COMMAND( this, "SortOn" );
+	this->PlayCommand( "SortOn" );
 
 	m_fTimeLeftInState = GetTweenTimeLeft();
 }
@@ -372,7 +372,7 @@ void WheelBase::TweenOffScreenForSort()
 {
 	m_WheelState = STATE_FLYING_OFF_BEFORE_NEXT_SORT;
 
-	COMMAND( this, "SortOff" );
+	this->PlayCommand( "SortOff" );
 
 	m_fTimeLeftInState = GetTweenTimeLeft();
 }