Sync music to iPhone
my iPhone won't connect- show up in Music when connected to my MacBook Air I want to transfer music to it. I have done this in the past with no problems.
iPhone 8, iOS 14
Marjorie,
It doesn't show up in Music the way it used to in iTunes. Instead, it shows up in Finder.
See details here:
Use the Finder to sync your iPhone, iPad, or iPod with your computer - Apple Support