#define C	523	/* Middle C */
#define D	587
#define E	659
#define F	698
#define G	784
#define A	880
#define B	988
#define C4	1046
#define D4	1175
#define E4	1319
#define F4 	1397
#define G4	1568
#define A4	1760
#define B4	1976