I am using the newest version of BWS and noticed that BGTMusic doesn't work like I remember. The issue is that when I install the full BG/SoA/ToB music component some of the music wont play and at least one place uses wrong music track. These places are Candlekeep inn which has no music at all and Candlekeep barracks which has one of the inn tracks playing instead of the usual gloomy track. If I install the full BG/ToTSC music component I don't have these issues.
I have tried both components with minimum installations. I don't think I had this problem with earlier versions of BWS but it has been some time so I could be mistaken.