Interesting, but it doesn’t make the case for antique guitars. I was unimpressed with the gut strings, that sounded like a cheap beginner guitar. The nylons sounded better, but not better than I could get out of a sub $1,000 Asian guitar. Those silk and steel strings brought out some beautiful overtones, especially on the high end. But even with those I’m sure I could find a new Martin that sounds just as good.