Yeah, something I've always hated, and been annoyed about. They screwed
it up originally, and now won't allow it to be fixed. Instead, I believe
they tout it as a beneficial outcome of the screw up.
> You're not telling me I need a third for Apple Music, are you?
If you want to keep Music purchases separate from your other purchases,
and then I would think you do.
You can have as many iCloud IDs as you want, apparently, but only the
first account logged in gets the iCloud features activated, and then
only one can be used for Music purchases.
I haven't tried it myself, but a workaround might be to set your other
account up as a Family member, and then share it to the master account.
--
Andy H