DC>   I was wondering if anyone knows of something someone may
DC>   have already written that relates pc speaker tones (from
DC>   dos.h) to musical notes?
   Not much call for that, being specific to DOS and Borland.
   I have something in C which you may find useful, however.
   This is really a C question, since there is nothing related
   to either the C++ extensions or OOD involved.
   You should see if you can get C_ECHO as well.
#include 
#include 
enum { CN, CS, DF, DN, DS, EF, EN, FN,
       FS, GF, GN, GS, AF, AN, AS, BF, BN };
int main(void)
{
   int Key, octave = 0, loop, note[7][17];
   int O6[17] = {
      4161, 4419, 4419, 4681, 4997, 4997, 5249, 5587, 5953,
      5953, 6273, 6657, 6735, 7055, 7488, 7488, 7883       };
   for(Key = 0; Key < 17; Key++)
      note[6][Key] = O6[Key];
   for(loop = 5; loop >= 0; loop--)
      for(Key = 0; Key < 17; Key++)
         note[loop][Key] = (int)(note[loop + 1][Key] / 2);
   textattr(7);
   clrscr();
   textattr(31);
   cprintf("\n\n\n\n\n\n\n\n Use keys A-G for A-G Natural. \n\r");
   cprintf(" SHIFT/ACDFG  for Sharp notes. \n\r");
   cprintf(" CTRL/ABDEG   for Flat notes.  \n\r");
   cprintf(" F1 - F6 select octave.        \n\r");
   cprintf("   Down or Up one octave.   \n\r");
   cprintf(" Other keys turn sound off.    \n\r");
   cprintf(" Press [ESCAPE] to quit.       \n\r");
   while(Key != 27)
   {
      Key = ((Key = getch()) != 0) ? Key : -getch();
      switch(Key)
      {
         case '<': octave--; if(octave < 1) octave = 0; break;
         case '>': octave++; if(octave > 5) octave = 6; break;
         case -59: octave = 0; break;
         case -60: octave = 1; break;
         case -61: octave = 2; break;
         case -62: octave = 3; break;
         case -63: octave = 4; break;
         case -64: octave = 5; break;
         case -65: octave = 6; break;
         case 'a': sound(note[octave][AN]); break;
         case 'b': sound(note[octave][BN]); break;
         case 'c': sound(note[octave][CN]); break;
         case 'd': sound(note[octave][DN]); break;
         case 'e': sound(note[octave][EN]); break;
         case 'f': sound(note[octave][FN]); break;
         case 'g': sound(note[octave][GN]); break;
         case 'A': sound(note[octave][AS]); break;
         case 'B': break;
         case 'C': sound(note[octave][CS]); break;
         case 'D': sound(note[octave][DS]); break;
         case 'E': break;
         case 'F': sound(note[octave][FS]); break;
         case 'G': sound(note[octave][GS]); break;
         case 1: sound(note[octave][AF]); break;
         case 2: sound(note[octave][BF]); break;
         case 3: break;
         case 4: sound(note[octave][DF]); break;
         case 5: sound(note[octave][EF]); break;
         case 6: break;
         case 7: sound(note[octave][GF]); break;
         default: nosound(); break;
      }
   }
   return 0;
}
> ] God's side of the tire is Never Flat........................
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