Music is weird

It seems like none of the sound settings effect the music. I'm not sure what the current setting is, but it's not the MT-32 music I know well. I went into the sound settings and changed it to System Midi, and then I selected my midi mapper which is tied to MT-32. This works fine in DosBox for me, so I know it's okay, I just can't seem to link it to TFE.

Any help appreciated. Thanks