How to make music play again when music stop

I have used the coding action script SoundMixer.stopAll(); to stop my song when going to another frame but when I go back in the previous frame the song doesn't play. I have to be at the first frame again for the song to play. How do I want to make the coding only stop when it reaches the desired frame and return to the frame where there is a song, the song will play again. Actually, I am making a learning application that has three parts is learning, quizzes and games.