Thank you very much for your help. I have done all those things, but the result is the same. I can't even add songs that are my own.
I'm trying to do a slideshow to accompany one of my one songs.
I've been able to a songs from my music library on my ipad, but couldn't see a save or share there.
In any case, i would like to be able to do this on my Mac.
So - after restarting, making sure I'm logged in for both Music and Photos, what happened in the original screenshot is still happening.
This time around I can see that there a some albums and songs that I can add.
When you say "Some songs are not eligible to be added, especially if they are not purchased songs." that confuses me. I subscribe to itunes match as well as buying songs from apple, and the actual song I want to add is my own recording of my own song.
Can I not add my own song to my own photos?
Thank you very much for your help, much appreciated
b