private void StartCountdown()
{
_playingMusic = true;
SolidColorBrush brush = new SolidColorBrush(Colors.Red);
MyProgressBar.Foreground = brush;
InstructionTextBlock.Text = "GO";
InstructionTextBlock.Foreground = brush;
Countdown.Begin();
}
private void StartCooldown()
{
_playingMusic = false;
SolidColorBrush brush = new SolidColorBrush(Colors.Blue);
MyProgressBar.Foreground = brush;
InstructionTextBlock.Text = string.Format("Get ready for round {0} ....", _round + 1);
InstructionTextBlock.Foreground = brush;
Countdown.Begin();
}