I want to play music from all 3 of the computers in my household without de-authorizing/authorizing (what a pain in the neck) every time, will the home sharing app allow this?
If not, is it possible for me to have multiple computers authorized to play content which I have purchased through itunes? How can I do this?
You should only need to authorise a computer once. You can authorise up to 5 computers to use a single Apple ID. You can authorise a computer to play content from an apple ID by placing some protected content onto it and trying to play it.
Apple has discontinued Music Home sharing since iTunes 12.2.1 => Share your iTunes library over your home network - Apple Support
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Apple Music content can't be shared using Music Sharing or Home Sharing. Learn more about Apple Music.
Don't accidentally believe this anything but 'encouragement' to subscribe to newly launched 'Apple Music' at at least USD/EUR 9,99 per month!
Home sharing question
