Audio Won't Play

I’m working on a game for which I made a soundtrack, but I can’t get the audio to play… it was working before, but now it won’t play. My previous settings were Sync: [Event][Repeat] [1], but naturally, I wanted it to play more than once, so I changed it to Sync: [Event][Loop], but it stopped working. I tried a bunch of different settings, including my original one, re-imported the music, and did just about everything I could think of. Anybody know what’s wrong, or how I could fix it?