Один раз загрузить и много раз проиграть звук

sndPlaySound(OpenDialog1->FileName , SND_ASYNC);

void __fastcall TForm1::FormShow(TObject *Sender)
{
  if (FileExists("sound.mid"))
  {
     MediaPlayer->FileName = "sound.mid";  // "music.mp3"
     MediaPlayer->Open();
     MediaPlayer->Play();
  }
}
 
void __fastcall TForm1::Timer1Timer(TObject *Sender)
{
  if (MediaPlayer->Mode == mpStopped)
    MediaPlayer->Play();
}

#include <mmsystem.h>
...
TMemoryStream *ms = new TMemoryStream;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button_LoadClick(TObject *Sender)
{
        ms->LoadFromFile("C:\\1.wav");
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button_StartClick(TObject *Sender)
{
        PlaySound((char*)ms->Memory, NULL, SND_MEMORY | SND_ASYNC);
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button_StopClick(TObject *Sender)
{
        PlaySound(NULL, NULL, NULL);
}
//---------------------------------------------------------------------------

#include "mmsystem.h"
mciSendString("play sound\\Sound.wav ", 0, 0,0);