That's what happens when new technology is introduced into an existing business model - the industry changes. Existing players may exit the market (some may even "die"), some struggle, some adapt to the change and thrive, and other new players enter.
> a dying art form > music as we know it...is dying > the music industry is dying
Music as an art form is largely unchanged, especially the more artistic, less "pop music"-focused forms.
The music industry is refocusing on live performance and the long tail, and less on retail sales of pre-recorded physical media.
Adapting, evolving, changing, transforming.
Maybe declining, shrinking, endangered, troubled.
Maybe broadening, renewing, refreshing.
"Dying" doesn't describe it well at all. I don't think it means what you think it means.
Both you and hacker news would be better off if you read this article and then commented to the parent with your rebuttal rather than what you think is a witty one liner with no substance.
http://www.paulgraham.com/disagree.html