ITunes sharing among iPhones with different Apple ID's one computer WITHOUT home sharing, shared folder, etc...

Question

I feel like I am losing my mind, here. A few things I want to clear up before you read my question:
No, I am not new to Apple. Yes, I understand that Home Sharing works for any group of devices authrized with my Apple ID. Home Sharing is not my issue.
1. My wife and I have different iPhones with different Apple IDs.
2. We only have one computer, on which iTunes is running under my Apple ID.
3. My iTunes library is far too large to paste into a shared folder. I keep my source folder on a 1TB external hard drive (not enough space on my iMac).
I just want her to be able to plug in and copy music onto her phone from iTunes. Home sharing is great while she's at home on the wifi, but not when she leaves. I created her own user name on my computer, set her iTunes (under her Apple ID) to pull from my library source file, and she can play everything fine, except that she cannot click and drag files onto her phone.
Any assistance would be appreciated.

Answer 1

iTunes Match is associated with one, and only one, iTunes Store Apple ID and country-specific store. The service cannot be shared between Apple IDs.
Indy Apple Guy wrote:
If we sign up for iTunes with the one account with the majority of the songs, is Home Sharing no longer available to the other two accounts? 
Of course it is. iTunes Match has no affect on Home Sharing.
Indy Apple Guy wrote:
A.  What happens to the songs on the other two libraries?  Can we never use them?
It is possible to consolidate the tracks from the other iTunes libraries into one and use that for iTunes Match. Make sure the one computer that hosts the library is authorized to play any protected content.
Indy Apple Guy wrote:
C.  If we purchase songs/albums while in iTunes Match, and then decide not to use Match in the future, do we lose all our music?
Of course not. Any purchases go to the purchase history for the Apple ID that bought them and as long as the tracks are downloaded and backedup you'll have them as long as you maintain them. Keep in mind that iTunes Match is a service; you don't do anything "in" iTunes Match. It simply "is" in the background.
Indy Apple Guy wrote:
D.  If we associate our child's iTouch, will it still keep the parental controls in place so it won't play certain songs that are not appropriate f
Yes, parental controls should continue to work as they have. Although I do not use them, perhaps someone else with experience will weigh in.
Message was edited by: Michael Allbritton