It seems to me that you replied to my last message, but I don't see your answer now. Anyway, I now have the final and complete--I hope--answer to my question.
YOU CANNOT EXTRACT A NORMAL-LOOKING LINK FROM AN APPLE COMPUTER. Instead, Apple gives you an IMAGE/LINK, and this IMAGE/LINK is Apple's link. In other words, I can click on a song in my Apple music library, and Apple will produce an IMAGE/LINK. I can then use this IMAGE/LINK just I would use an ordinary link. The technician I talked to said that it is slower than the traditional link. The march of progress.
Oh, he also told me what I should now call iTunes. I guess "Music app" is now the term to use.
Thanks for your help/