Can I add my thoughts to this discussion please.
What is fascinating about Led Zeppelin is that they achieved what they did without TV, very few radio interviews and only a few music paper interviews usually chatting to only one of the band.
That's an almost impossible model to follow now.
Like mentioned preciously music has been fragmented for a while now through the specialist radio to the internet sub genres formed for people who enjoy subgenres and nothing else.
The history of the UK industry bewilders me at times. Remember The Beatles were turned down. Guitar bands were seen as a passing fad(as was Rock n, Roll itself). If you read about the birth of the UK music scene kids in their teens played illegal gigs in stinking shop cellars, fights happened a lot Police raids, venues becoming the go to places for the new and angry generation.
What I have noticed recently is that somehow music has been rebranded as a market force. The commercial being seen as the way forward. Actually what made the UK scene was the oddballs and the outsiders. Being different was they key. Zep, Bowie, The Beatles were the shock of the new, talented yet pushing the boundaries.
Radio in the UK has definitely overtaken TV in trying to introduce new acts to people.
I hope that people stay creative and musically curious. I hope that the industry wakes up and sees the talent in the outsiders rather than just wanting to maintain the profits as that will kill music.