Haha, I like the title of this thread
It sounds to me like a question about allowing the end user to put in his own custom soundtracks that trigger when an event happens. The best example I can think of is with a football game called NCAA Football 09 for XBOX 360. The way it worked was, the game gave you a series of events like:1st down
And then the end user would select one of the above events, then it would open their XBOX 360 hard drive where the end user could search for a music track that they wanted to play for the specified event. Lots of people have music on their hard drives (I think just about every PC comes with pre-loaded classical music), and of course there is free music all over the place on the net, so the end user finding material to use wouldn't be a problem at all. Thing is for the program creator, how the heck do you do it in Construct? That I don't know. It's not something I've ever considered doing with the program, I'd bet there is a way it can be done though.
If someone knows, this is one of those things that should be wiki'ed, because custom soundtracks is a great feature.