procedure TForm1.Button1MouseDown(Sender: TObject; Button: TMouseButton;
 Shift: TShiftState; X, Y: Integer);
begin
 PlaySound('wmpaud7.wav', 0, SND_NOSTOP + SND_ASYNC);
end;
procedure TForm1.Button1MouseUp(Sender: TObject; Button: TMouseButton;
 Shift: TShiftState; X, Y: Integer);
begin
 PlaySound(nil, 0, 0);
end;