Good luck getting a bishop to approve it!
I’ve been trying to get this beast singable and I’ll put a revised version up when I get a chance. I’ll look into your suggestion of a creative commons license before I do, and thank you for the advice.

As far as making copies and using it, apart from it being at their own risk, I have no problem with that being done.

Obviously parishes will only be able to use it in Mass if their local bishops have approve it (ahh, yeah, will do 🙂 ) – but you’ve published it here with no info on what to do to get permission to make copies.

fyi, I’ve suggested to a few people who’ve composed things that they consider Creative Commons licensing: this gives you control, but also gives a blanket permission to make copies without always having to ask you first.