running a number of trials while a sound file keeps playing

I am trying to continuously play a sound file (background music) while multiple trials, consisting of stimulus lists-based picture events, keep running. When the sound event is linked to the subsequent trials, what I get is the music starting over at each new trial.

If I am creating a separate trial for the sound file and in the event input tab set it to end only after a time limit, it keeps playing for the specified time. However the subsequent trials do not start until it ends, in spite of the “Wait for sound file to finish playing” checkbox being turned off in the stimulus tab.

How can I make it to keep playing continuously until a time limit while all subsequent trials keep running?

Any help will be appreaciated

Playing a blank sound file when you want your music to end would work. I think this thread will be helpful to you: