It's related to my original question about AirDrop because on my iPhone, after having downloaded a ringtone from Google Play (Charlie Brown's Christmas piano!), I was searching for ANY way to make that downloaded ringtone....well, my iPhone ringtone! (It's not like Apple doesn't recognize Google Play: I downloaded the app from the App Store, after all). One thing I tried - or, wanted to try - was to get it on my iMac's iTunes so it could be somehow gotten into Ringtones that way, so I could select it. No joy!
My real basic questions still stand: 1) Google Play and the stuff you can download from it is recognized by Apple; how can I get a ringtone downloaded on it, to become my iPhone ringtone; and, 2) Why doesn't AirPlay seem to be available to me, at all? Bought my iPhone 7 Plus from the Apple store a few months ago; updated to latest iOS; my iMac I bought there last year, running 10.11.6/El Capitain. Advertising that capabilities exist, and yet they really don't, tends to make me ornery, after spending so much money.