Sharon, thank you for replying and trying to help.
.ppt didn’t work for me. I don’t know anything about Microsoft products except Word and I don’t even have that now. I’m trying to make do with OpenOffice and NeoOffice; iWork as a last resort.
I received the .pps in an email and I tried to play it before I had a chance to study Keynote or Impress.
The sound that came with the slideshow was called Musica Celta - La Musica de los Dioses Titanic.
Before I figured out how to get the sound to play within the slideshow, I found that sound on a YouTube video.
YouTube - la musica de los dioses - clasica, celta y espiritual
I downloaded the video as a FLV and then extracted the sound from that as a MP3.
Apple - Downloads - Video - SWF & FLV Player
I added it to iTunes and tried Keynote again. As I made the window larger, lo and behold the Media icon showed up. Playing with the Inspector, I clicked on the Document icon instead of the Slide icon and found what I was looking for. Between the Document, Slide and Media inspectors I was able to insert the music from iTunes and got it to play.