Music Appreciation

So the dictionary gets bigger & bigger.
Clapton introduced the long flowing lines mixing fast & slow.
A few years later Hendrix added noise & aggression.
Hendrix disciples like Trower added depth to the harmonic sophistication.
Then Van Halen added a whole new section to the book, and guys like Satriani taked on another layer of harmonic sophistication. Plus, at the same time Knopfler made finger-style & clean cool.
And, that doesn't count the fusion guys.
So guys like Guthrie Govan & Matteo Mancuso were inevitable. They had the textbooks the players just didn't have in 1970.
Continues to evolve, too.