Second Reality was art indeed, but the GUS didn't make all that much difference for it. The soundtrack didn't have higher rate samples for the GUS's memory to hold or more channels for it to mix. Later demos and games did use these capabilities, but for Second Reality, the GUS sounded just about the same as a 16-bit Sound Blaster.

Yeah, it infused my software engineering career and interest in optimisation and 3-D rendering.

P.S. When we invent the time machine, we should go back to load up on actual GUS _and_ spread the word for people to never install it horisontally :-)