[...] Your mention of the use of compressor on all instruments caught my attention: was the purpose of this having a tighter overall dynamic range for each instrument or something else?
If I'm allowed to chime in here: I assume that over and all Guy likes the additional "glue" that a bit of compression can add to the performance of sampled instruments. Using comparatively low thresholds, ratios of 1:1.2 or 1.5 with just a few dB of gain reduction every now and then is all that's needed, most of the time. ... and if you're using Vienna Suite's Compressor, the optional "FAT" will add some warm, glowing saturation, too - especially nice on solo instruments! 😊
/Dietz - Vienna Symphonic Library