Mod Music doesn't work。。。anyone could help?

I subscribed a music mod, with mp3 musics in different folders, including sound/music/CivJingles、sound/music/Interface and sound/music/Standard.
But I found only the mod musics in CivJingles and Interface folders do play, the musics in standard folder,which should be playing in a loaded game, doesn’t work, and the BGM is still the original one.
Is there anything should I do to fix this? Any help will be deeply appreciated.