05_song

macros.h

#define Y you
#define ILA I look at
#define ILAYA ILA you all
#define IDK I dont know
#define HYW how Y were

#define WSMGGW(x) x my guitar gently weeps

song.c

#include "macros.h"

#define _ERSTE_STROPHE_
#include "verse.h"

IDK why nobody told you
how to unfold you love
IDK how someone controlled you
they bought and sold you

ILA the world and I notice it is turning
WSMGGW(While)
With every mistake we must surely be learning
WSMGGW(Still)

IDK HYW diverted
you were perverted too
IDK HYW inverted
no one alerted you

#define _ZWEITE_STROPHE_
#include "verse.h"

verse.h

#ifdef _ZWEITE_STROPHE_

ILAYA see the love there that is sleeping
WSMGGW(While)
ILAYA
WSMGGW(Still)

#else

ILAYA see the love there that is sleeping
WSMGGW(While)
ILA the floor and I see it need sweeping
WSMGGW(Still)

#endif