I've created a pack containing all of the music tracks from CK4 remade from the ground up. It's meant as a replacement of the original AdLib soundtrack, if you're, for example, writing a new game or need more modern sounding music for your engine.
Check it out on YouTube: https://www.youtube.com/watch?v=ATMoNL-NtFA
There are also alternative versions of two tracks: a minimalistic version of Too Hot (meant to be played in the cave / pyramid levels) and a version of Hillville to be used in the Crystalus level (the original doesn't really fit there IMO).
The wav files contain loop points to allow for seamless looping. If possible, use these, otherwise it's best to just cut the files to only contain the looping part.
Here's the download link:
http://www.mediafire.com/download/3zdd0 ... Remixes.7z
The whole soundtrack is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Anyway, I hope you guys enjoy! If you use this for something, let me know, I'm curious :]