On the whole I rather like the music the way it is -- high quality, authentic to the period, and not too intrusive because it's instrumental and there are long silences between the pieces. But the game is very long and you will eventually notice that you are hearing a few pieces over and over again. So one way to lessen that effect is to add more material. This can't be done officially because of copyright constraints, but modders aren't usually that fastidious about such issues. And anyone who has played the John Tiller ACW games or knows the Ken Burns Civil War documentary already has access to material that, with a little editing, can be put to use.
Is it possible to add more music to the current selection without giving the game engine a nervous breakdown? And how would one go about it?
Some games are set up so they play the contents of a music folder over and over, others need to have a list of instructions updated somewhere.
The Ageod games don't seem to use a music folder but do have a configuration list, so would it be enough to make a new entry in that list to encourage the game engine to search for a particular piece of music? Or does something else have to be changed as well? If the selection method requires changes to the coding (which I suspect because I saw something about a bug that was causing music to only play once) then modding the music selections is not going to be viable.
Finally, if the game engine could be directed to play from a longer list of music, how closely do the properties of a music file have to match the properties of existing ones? In one game that I've worked with if you don't run the file through a sound editor and make some adjustments the final result can literally end up sounding like Alvin and the Chipmunks.
The music of the ACW Tiller games over at HPS is easy to mod -- just throw some more files into the music folder and you're ready to go. The music model here looks like it is closer to what goes on in Europa Universalis II, which requires a fair amount of tinkering under the hood. The music selection in EU II, by the way, is a masterpiece -- I truly love a game that gets me to sing along in Latin or renaissance French.
This all started because I don't really like the introductory piece (what is it called and what is its history, by the way?). I started poking around the web for that haunting fiddle piece (Ashokan Lament) that introduces the Ken Burns Civil War documentary series, only to discover (to my chagrin) that it was composed fairly recently at a fiddler's camp in New York State -- the composer describes it as "a Scottish lament written by a Jewish guy from the Bronx". When I listened to other cuts from the rest of the soundtrack I realized what Ken Burns was doing -- he was trying to reproduce period atmosphere and a certain mood without being enslaved by the need to be strictly authentic. My sound clip of Ashokan is too low quality to use in a mod, but I do have some very high quality clips of Lorena and Somebody's Darlin' (a macabre piece about the aftermath of battles), which produce a similar psychological effect.