5 Easy Steps to Add Music to Your PowerPoint Presentations by 3 From the "Format Audio" tab, select "Play Across Slides" to make the song played automatically after you open the presentation. 3 1 2 On the "Home" tab, open Audio browser by clicking "Media" > "Audio Browser". Select your song file, and then drag it onto your slide. 1 4 To repeat your music throughout the presentation, set it by going to "Playback -Options" and select "Loop Until Stopped". 5 Finally, to hide your audio file icon on your presentation, click it, go to "Playback Options" and select "Hide Icon During Show". by SOURCE https://support.office.com/en-ie/article/Video-Add-audio-that-plays-through-your-entire-presentation-4a6c26a2-d52b-4e93-88b3-a75c7a6aeaa8 4 5