How do you make the game play more than just the same two tracks?

[jnpoint]

Does anyone know how to make installed music tracks play in-game?
I have copied MP3 files into the the music folder, but even with new names it always only plays the same number. I can only make it play Kingdoms-Main-theme again and again, but not fx Kingdoms-main-theme1 or anything else?

[Pocus]

Without editing the code that decides when to change track and with which probability, you'll be limited in what you do.

Did you tweak in Data\
Music, MusicLow, MusicVLow ?

[jnpoint]

No, I haven't I do not know anything about editing, that's why I'm asking. But I'll try your suggestion then, thanks.

[jnpoint]

Sorry if I'm too much
But what do I do from here:

Kingdoms-Main-Theme // Index 0 - Main Menu
Kingdoms-Tranquil-Theme // Index 1 - Strategic Map
Kingdoms-Tranquil-Theme1 //
Kingdoms-Main-Theme // Index 2 - unusable
Kingdoms-Battle-Theme // Index 4 - Battle
Kingdoms-Winning // Index 5 - Player Won
Kingdoms-Losing // Index 6 - Player Lost

I want Kingdoms-Tranquil-Theme1 to play (I have tried with Index 1a or Index - Strategic Map1 - but with no result?

[Surt]

Well everything behind // is just a comment
// this is a comment
try renaming it to
Kingdoms-Tranquil-ThemeX // something that is not like the other entries with a number after. Must match the filename
maybe it works?

[jnpoint]

Well everything behind // is just a comment
// this is a comment
try renaming it to
Kingdoms-Tranquil-ThemeX // something that is not like the other entries with a number after. Must match the filename
maybe it works?

No, it does not work. Now no music is playing at all.
I give up and will find a youtube playlist and play that then, but thanks for the help.