thanks guys!! but my questions at this point are strictly about the default factory package without me doing anything to create or modify styles. for now all I am interested in is how to load and use them and what to expect when I do that!

so, if I load a style that has several tracks of MIDI, are those tracks' MIDI data fixed in that style? or is that data recreated each time I load that style? and, is it recreated when I press Generate and Play?

and, assuming PG is providing the MIDI styles with BIAB and they wrote those MIDI data sections, am I safe in assuming any MIDI style marked "violin" has MIDI data that was designed to be reasonable on a violin?

So, I guess my questions are not so much about general MIDI but, rather, about what is BIAB doing to create MIDI data for me!