steps to add music to slideshow in Photos 10.13.6
I would like detailed step-by-step instructions on adding music from iTunes library to my slideshows. The instruction I've seen in the application is extremely vague. It doesn't even tell you where the music icon is, or what to do after you finally spot it over on the right side of the window and select a piece of music. I've not been able to have the song I select actually play in the slideshow.
iMac, macOS High Sierra (10.13.6), null