A grom or grommet isnt necessarly a biginner surfer but a YOUNG surfer... usually under the age of 15. Most of the time people that are called groms are youngins who RIP (are good).
To play a song in the background of your slide show, do the following: On the Insert tab, select Audio, and then Audio on My PC. In the file explorer, locate the music file you want to use and then select Insert. On the Playback tab, select Play in Background.
In the Header and Footer dialog box, on the Slide tab, make the change that you want, and then do one of the following: To apply the changes to the information on the slide or slides that you selected, click Apply. To apply the changes to the information on all of the slides in your presentation, click Apply to All.