I understand the nondestructive processing bit. (I still have n-tracks on one of my computers, so I have Climbed the Learning Curve. Ah, the young'uns who can download Audacity and have a noise-filtered, normalized podcast in seven clicks. They don't know what we had to do, walking through the software docs uphill, both ways, ...)

But I have one more question, sir (and then, thinks Columbo, I'll have nailed Smith for the murder of Jimmy Hoffa): if I'm understanding correctly, the VSTi is not a standalone app but a plug-in, which means I will need another app that does live-processing and output if it's a live performance (or, for us mundanes, making our Casio keyboards sound a little less like sh**). Apparently, Audacity doesn't do everything I need in audio software...