Though I'm not sure where 166 notes came from.
Even on a 24 fret electric there are only 144, and 2/3rds of those are repeated at least once. Actually only 4 notes can't be played elsewhere. I'd say there are only about 40 notes to work with. But, having the same notes in different places opens up the patterns that form.
But, i get his overall point. The same could be said about western music in general.
There are only 12 tones; the formula for chords is well established; and the ear is trained in those western music motifs. It's a certainty that songs will resemble some other songs.
Geez, John Fogarty got sued for sounding too much like John Fogarty!
I've got too many guitars to post pics. In fact, I don't have photos of most of them, even if I wanted to post them.
I've got 14 hanging on the walls of my rec room, a bass in the corner (in the case), a mandolin, a real piano, 2 digital keyboards, a couple amps & a 16 track recording console in there. My wife doesn't get to decorate much in there.
But, I've played easily over 2,000 gigs in my 30 years performing so the extra cash flow was available for all these toys. I have purchased one cheap acoustic since I quit performing. My accumulating days are over.
Funny thing is, in my 30 years of active gigging, I was a multikeyboardist for 90% at least. Yet I ended up with 17 stringed instruments.
Musicians!