Peter, still I can't dominate th filenames convention.
Let's take trumpets as an example. There are four of them.
ST2 and XT2 files ranges from 01 to 04.
But in the realtracks folder the numeration of trumpet subfolders gives no clue about which is trumpet 1 and which is 2,3,4.
Numbers of files increase starting from 001, but no number there indicates the correlation with the xt st files.....
Being just 4 in this case I could give a try one by one, but what if I have to search for a specific bass?
I'm in panic!