Family sharing Apple Music to Android phone

Thanks for the reply Limnos. 

She is, as you say, already part of the family group, Music library sharing is working fine for her on her iPad, and that was without any email invitation. But on the Android phone, and yes, signed into Apple Music, it just keeps asking her to subscribe, which I presume is not required, given success on iPad. I think I’ve maybe found the issue, a problem with her default email account in her Apple ID settings, so she’s just not seeing the email. I just hadn’t realized there would be an email for Android, but not one for Apple/iOS devices. Still fiddling…

(PS, this message was composed 5 hours ago, but for some reason the discussion board kept kicking me out, so just reposted before posting below note, editing now to explain time stamps.)

Update: that didn’t completely solve the issue. I successfully updated her Apple ID to correct email, confirmed that is now working on other devices (iPad, Mac mini). But on her Android phone, after signing out of her account, then signing back in with “new” ID credentials, I am able to hook up to family sharing, but it will only show ONE album. Waited 30 minutes, no change. Good wifi and internet. What gives?