In Photostory Easy, I could remove a music track by right clicking on it and hitting 'remove' or something of that sort.
In Deluxe, I had an issue where I added a music track then changed my mind -- but I could find no way to remove it. I ended up squeezing it into a small space at the very end of the slideshow where it was covered up by a different music cue. But I can easily see this issue arising again, and wondered what the solution was.
Again, an issue that Photostory Easy handled.... easily. Please bring it back.