Working with music in PowerPoint

[mummerx]

I have a slide show created with music added and playing across multiple slides.
The slideshow is long (~200 slides).

Is it possible, in order to work on timing, to start on, for example, slide 50 and the music be at the right spot as if the music started at the beginning of the slideshow?



Or am I stuck always watching the entire slide show to see timing in later slides?

Thanks in advance for any insight.