Just put the new music in your music folder, open module_music.
You will see for example: (this music plays when you are in a vaegir town)
You need to change the reference music name, and add the flag mtf_module_track
So it would become:
You will see for example: (this music plays when you are in a vaegir town)
Code:
("town_vaegir", "town_vaegir.ogg", mtf_culture_2|mtf_sit_town|mtf_sit_travel, mtf_sit_tavern|mtf_sit_night|mtf_culture_all),
You need to change the reference music name, and add the flag mtf_module_track
So it would become:
Code:
("town_vaegir", "YOUR MUSIC HERE.fileextension", mtf_module_track|mtf_culture_2|mtf_sit_town|mtf_sit_travel, mtf_sit_tavern|mtf_sit_night|mtf_culture_all),