in main ...

char *notesOctave[NOTES_OCT_MAX] = {"do\0","do+\0","re\0","re+\0","mi\0","fa\0","fa+\0","sol\0","sol+\0","la\0","la+\0","si\0"};
printf(" note4 : %s   %d  \n", notesOctave[9], 9);