Score (excerpt)

four performers
with computers

7:00

In this missile age, our emergency systems must keep pace. That's why the old Conelrad System is out -- It's been replaced by the new, improved Emergency Broadcast System -- A better, quicker way to bring you essential information in the event of enemy attack. It's no longer necessary to tune to 640 and 1240 on your radio dial. Now, in a national emergency, encoded radio messages are sent to an EBS station in your area to provide special emergency information. Normal radio and television programming will be immediately discontinued so that top priority can be given to Presidential messages. Following the attention signal and the frequency-shifted header burst, listen in for official civil defense instructions and act vigilantly.