21.   As if to reassure the racers, the prosecutors say, the officers pumped music through their public address system.

22.   As a jangle of synthesized music started on the public address system, she held her position at the blue line, then pushed off to commence her routine.

23.   As Mariah Carey songs blared from the public address system, campers cheered and sang along.

24.   At Colleyville Heritage High School, an announcement about the report was made over the public address system, which prompted a mixed reaction.

25.   At halftime on Sunday at the Tennessee Titans football game in Adelphia Coliseum, the voice of the announcer boomed over the public address system.

26.   At the same time, Nugent set out to instill the value system in every teacher, in every class, even in announcements over the public address system.

27.   A fleet ot TV trucks lined Cambridge Street and a marching band played while WBCN aired its broadcast over the public address system.

28.   A police officer used his public address system to tell people to get back.

29.   A voice on the public address system asked mourners to deactivate their cell phones and pagers during the service.

30.   Again, the cabin lights went dark and the public address system failed.