While waiting for replies I've found myself browsing new music once again (now that I actually have the time to do so), and decided to actually make a list of the musical themes I've assigned to various characters in the Prophecy at the moment. So... yeah. (Note: I'll only do this for my own characters and NPCs unless instructed otherwise.)

[HIDER=Theme music]Kreshtaat: [url=https://www.youtube.com/watch?v=f_Smh6Ar-Bw]Michael Riske - Queen of Opposites[/url]
The Nomad: [url=https://www.youtube.com/watch?v=WXnyjaGn24I]Audiomachine - Young Blood[/url]
Jaelnec: [url=https://www.youtube.com/watch?v=7L_y6eLG6Qs]Audiomachine - The Last One[/url]
Olan: [url=https://www.youtube.com/watch?v=7SBST7N7fj8]Michael Riske - Are We Really Free[/url]
Laon: [url=https://www.youtube.com/watch?v=gxG_x1tvGzo]Immediate Music - Supernal[/url]
The Grand Master: [url=https://www.youtube.com/watch?v=b9l0eiKaJGA]Two Steps From Hell - Exodus[/url]
Gerald: [url=https://www.youtube.com/watch?v=ctSQwwZpfv8]Michael Riske - Falling Heart[/url]
~name redacted, to be disclosed at a later date~: [url=https://www.youtube.com/watch?v=YBXV2ekE2To]Audiomachine - Apoctalyptic Warnings[/url]
The Fixer: [url=https://www.youtube.com/watch?v=aZ1pCyFK_kY]Remains - Aviators[/url]
Draigen: [url=https://www.youtube.com/watch?v=6yRZ5etI76Q]Audiomachine - The Last Immortal[/url]
~name redacted, to be disclosed at a MUCH later date~: [url=https://www.youtube.com/watch?v=ySXsFk3v-_E]Audiomachine - Blitzkreig[/url]
Valderoth: [url=https://www.youtube.com/watch?v=5X-ritn0JUc]Michael Riske - Midnight[/url]
Rilon: [url=https://www.youtube.com/watch?v=S6VYxL8nF5o]Epic Score - Waiting for Gods[/url]
Lu: [url=https://www.youtube.com/watch?v=_v--PWTfU-8]Michael Riske - Shadow Rose[/url]
Sineater: [url=https://www.youtube.com/watch?v=lBNeADq-a-w]Ryan Amon - Bloodborne[/url]
The Catolohne Empire: [url=https://www.youtube.com/watch?v=LtFnjZ4Hhk4]Audiomachine - Uprising[/url]
Lord Nightmare: [url=https://www.youtube.com/watch?v=ZmfSVTfvtgA]Thunderstep Music - Story of a Soldier[/url]

The Untamed Stranger (Possessed Angora): [url=https://www.youtube.com/watch?v=9gKkzbVgzE8]Disturbed - The Game[/url] (The Berserker From Beyond)
Angora Kelenwyn: [url=https://youtu.be/h_nkYEjnIfE]Sirius Beat - As You Were[/url] (A Mind Restored)[/HIDER]

I think I'll link this on the OP and update it from time to time... Heh, it feels great to actually have time on my hands again.