The library comes as a flat list of thousands of waveforms (ok, with these two category levels "main" and "sub"). But in fact it is a much more deeply structured tree with many subtypes and subtypes of subtypes and variations and so on - often named with "L" and "R" and "St" and "Mn", which means left, right, stereo, mono I assume - but what is the reason for it? And what does it mean for the practical usage? And what does the other abbreviations mean? I can guess some of them, some i can't (depends on the knowledge about the original instruments, I assume). Or why is there often added a plus or a minus - like "st+" or "st-"? Often a waveform seems to be only slightly different or almost similar to another one.
But as always: there must be a reason for everything. The Data List (which is available as PDF download) does not tell anything more about it than the instrument itself does.
Where can I find a full description that decodes the concept of the waveform collection?