File content as of revision 0:9bae60bd8b98:

#include "mbed.h"
#include "Beeper.h"
#include "TextLCD.h"


Beeper myBeeper(p21);
AnalogIn ain(p20);
TextLCD lcd(p24, p25, p26, p27, p28, p29, p30); // rs, rw, e, d0, d1, d2, d3
float f;
float C4, D4, E4, F4, G4, A4, B4, C5; //keys
float t=.2;  //tempol
int p=0;
int size;

const float freq[8] = {261.63, 293.67, 329.63, 349.23, 392.00, 440.00,493.88, 523.25};
//const char freq[2] = {C4, D5};

const int song[] = {5,3,3,
                    4,2,2,
                    1,2,3,4,
                    5,5,5,
                    5,3,3,
                    4,2,2,
                    1,3,5,5,1,1,
                    2,2,2,2,
                    2,3,4,
                    3,3,3,3,
                    3,4,5,
                    5,3,3,
                    4,2,2,
                    1,3,5,5,1, 1
                   };

int main() {

    size=sizeof(song)/sizeof(*song); // size of element in the array
    while (1) {
        for (int i = 0; i <size-1; i++) {
            p=song[i];
//            wait(1);
            myBeeper.beep(freq[p-1], t);
            lcd.locate(0,0);
            lcd.printf("%d",sizeof(song));
            lcd.locate(0,1);
            lcd.printf("%d",sizeof(*song));

        }
    }
}