Absolutely delightfull! I appreciate that piece of history about the wax disc. Plus, I discover the "Boulder Acoustic Society". I really like their sound, more on the original YouTube's video than on the wax disc ;-)
It's also interesting to have such chronological demonstrations of different recordings from different methods at different times. We can clearly see recording's methods improving.
About examples 7 and 8. I haven't been fooled on frequencies at first and prefer number 8. That's funny, I have some old recordings from the 1930's-40's-50's in my LP collection that sound close to this.
Alan, after all, I'm still wondering why do you refuse to call yourself an audiophile? You'll have to explain it to me one day. If you already expressed yourself about this on the HUG, please give me the link. Thank you.