I love the music on ckii generally, and feel it helps with the immersion. Unfortunately I can't recommend this pack, not because it isn't good, but because of how often it plays:
"Each of these songs is twice as likely to play than other songs if you're playing a Christian religion group, Muslim religion group or Jewish religion group character and can't play otherwise."
I understand that you want to hear the new music you've bought, but as 90% of your games will probably involve one of those religions, you end up having to turn it off when you get sick of it playing twice as much as all the other songs, especially as one track is 11 minutes long.
If there's a way you can mod the frequency of this that someone could tell me I would recommend it; likewise if Paradox patched it. Otherwise it's just a bit of a pain. #1stWorldProblems