Difficulties having music playing in the background for a quiz

I’m working with Articulate Quizmaker with aim to make a quiz with 2 introduction pages and 5 questions. We wish to have music playing in the background, while the user is going through the quiz.

Do you know is there any way to make one mp3 file to play in the background through the whole quiz? There are 7 slides and I would like the music to start on slide 1 and continue with no breaks until slide 7, or - in the best case - until the end of feedback. The user has 2 minutes to go through the whole quiz.

For some reason the music works sometimes almost as desired, but if I change anything in the quiz contents, it will not work anymore (there seems to be no logic behind this…). In the best cases, so far, the music just breaks every now and then. Most often the audio track will start from the beginning after 45 second, so that there are two tracks playing at the same time.

Does someone know how to fix this?

Thank you for your help in advance!