m_bPastHereWeGo -> !m_bGameplayLeadIn, default false. This is more natural;

!m_bPastHereWeGo was the usual case.

stepmania/src/ScreenGameplayLesson.cpp

@@ -24,7 +24,7 @@ void ScreenGameplayLesson::Init()
 
 	ClearMessageQueue();	// remove all of the messages set in ScreenGameplay that animate "ready", "here we go", etc.
 
-	GAMESTATE->m_bPastHereWeGo.Set( true );
+	GAMESTATE->m_bGameplayLeadIn.Set( false );
 
 	m_DancingState = STATE_DANCING;