I can't add any music to my apple music library
I am trying to add new songs to my apple music library on my phone and it won't let me and I can add them on my computer but it won't update my apple music library
Does your Mac recognize your iPhone? See the "If you use a Mac" section in:
If your computer doesn't recognize your iPhone, iPad, or iPod - Apple Support
To avoid making this a very long thread, is there any other information you can supply?