Thanks for the help Raze

But since the download version (from GOG) HAS also the DD soundtracks inclusive, I have no need for a Music Extractor !
And it's almost impossible to play (and find) the right soundtrack (on my CD player) AND play that sound on the SAME moment when I'm walking in and out (for example) the Blue Boar Inn etc ...
That will been stupid interactions that destroy the gameplay even more ...
The most strange thing is:
by me it only happens (so far) on 3 places (Blue Boar Inn, Dwarven Bread Inn and if I go to the Farmlands). All the other places seems so far okay, BUT mostly the "changing" comes moments "later" !!

The music from the Ducall Inn in Verdistis is okay !
Lucky I've much patient and play DD on a very slowly way (take my time).
And fortunately the music plays well if I go to the Council of Seven Hall, because I love the beautiful sound on that place !!