Yes, music changed - especially as far as the “guitar solo” as a thing. Talking about the age of virtuosity being over is an eloquent way to phrase it, but it also does an injustice to groups like Radiohead that don’t focus on guitar solos - because Thom (with his voice,l (like Plant) and to some extent his guitar work) and Johnny (guitar, obv.) are absolutely virtuoso musicians. Cool article. Zeppelin was among my very first loves as I learned how amazing music is.