When oblivion came out i played it for awhile with its soundtrack and then proceeded to add morrowinds music to the game

This used to be an easy task, With a music folder in data files but i no longer see that, is there a way to add new music in the game?
I would love to use the previous games music and expand the soundtrack

Bump. Anyone?

From my understanding, there will eventually be a way to extract all the files from the BSAs to create basically what you are used to - all of the resources in a folder system.