How to share music between 2 iPhones?

Usually when I buy music through iTunes, it will appear on both devices, because Automatic Downloads is on with both devices. But if I just bought a physical copy of an album (not through iTunes) how can i transfer it through to the other iPhone? Please note that the two phones are in separate households.

We have two iphones (4s). We each have our own login on tne same PC, and we each have our own version of iTunes.

Is it possible to have ONE music library, and for us both to see all the music in it?

So far the easiest may of managing things is to have two libraries, each with the same music in them, i.e importing the same CD TWICE.

I tried making a common library, but all it does is put the source in the same place, the music seen in each library in iTunes is different.

I have read that it is possible to add in one account, and look at it in another. But if itunes breaks the album apart and sticks it in numerous foldedrs then thats just plain silly.

What I want is ONE library, one import of each CD, and for us both to be able to see the music in our iTunes libraries.

Can this be done?

I have looked online, but Apple's help isn't very helpful

Already spent HOURs on this:0