I love the Echonest team so this leaves me conflicted.
This product is at once the worst (potentially takes out that certain magic out of music blogs, systematizing and making them available for easy harnessing by some of the most voracious internet marketers out there) and the best thing that can happen to music blogs (validates the passionate sharing of taste as that with significant impact, etc).
Most places on the web where geniune conversation/excitement is shared eventually succumb to such a force and then we are left to seek new pastures yet unpolluted.
A natural lifecycle for most things on the more subtle/interesting content edges of the web. Tumblr will be in an interesting place in 3 years.
