Beeper Solved

Thanks to @JoshuaKennedy321 I learned that my little Beeper responds to increasingly higher levels of voltage by issuing forth a pleasant little beep. My clock sends out a 5 volt pulse at certain intervals and when I adjust the "threshold" level on the Beeper, it only beeps when it detects the assigned voltage. I figured that out by attenuating the pulses with a potentiometer and playing with the threshold levels. It's nice to learn things, isn't it? ... https://www.youtube.com/watch?v=On2a38scGaM