Hi:

Is there a way to edit linked music files whereby instead of their ending
when the song is actually over, e.g. a 4:32 song ends at 4:32, to have it end
at, say 2:00... but not abruptly, meaning it doesn't just all of the sudden
stop.  What I'm trying to do is blend together 5 songs throughout a 10 minute
presentation, and I would like one song to slowly fade out while another
slowly starts.  

If there isn't a way to natively do it in PowerPoint, I'm guessing I could
use some type of audio editing software, but I'm not sure how I would synch
the music to the presentation short of manually timing it.