Just to clarify something, now that I'm less tired and have looked again with a new perspective:
What you're asking is to share your owned tracks with your wife, and for her to share her owned tracks with you, whilst at the same time using two Apple IDs, with two concurrent iTunes libraries, and sharing the same source files. (I think!)
This isn't technically legal. The tracks are for the use of the buyer, and sharing them with your wife who is using a different Apple ID is the same as sharing it with any random stranger from a licensing perspective. Even with Family Sharing I believe music purchases are tied to the individual account, and not shareable? (Don't quote me on that...)
I'm not accusing you of anything - millions of people share purchased iTunes items between their family - but to implement a feature to so simply share out purchases would seriously annoy the labels. I could then just make my NAS accessible from the web and share all my purchases with friends, for instance, and have one monster iTunes library, paid for once, and used by many. Not good!
What you're asking is to share your owned tracks with your wife, and for her to share her owned tracks with you, whilst at the same time using two Apple IDs, with two concurrent iTunes libraries, and sharing the same source files. (I think!)
This isn't technically legal. The tracks are for the use of the buyer, and sharing them with your wife who is using a different Apple ID is the same as sharing it with any random stranger from a licensing perspective. Even with Family Sharing I believe music purchases are tied to the individual account, and not shareable? (Don't quote me on that...)
I'm not accusing you of anything - millions of people share purchased iTunes items between their family - but to implement a feature to so simply share out purchases would seriously annoy the labels. I could then just make my NAS accessible from the web and share all my purchases with friends, for instance, and have one monster iTunes library, paid for once, and used by many. Not good!