Flash 8: Get a sound to play if it hasn't already started?

Hi guys,

I have a typewriting effect that exists on 6 frames - on frame one the says what characters to type and which character comes next and on frame six it tells it to go back to the begining.

I also have a typewriting sound effect - Is there any way I can tell the flash to play the typewriting sound if it’s not already playing, every time it hits that first frame?