Pandora for Poetry

Wouldn’t it be great if a service like Pandora existed for poetry? I haven’t peeked under the lid, but from the description Pandora seems to analyze relationships between musical albums using specific elemental criteria to describe and correlate the sound and feel of one band with another (e.g. fast drums in this one, fast drums in that one–one point toward possible correlation).

Could we not similarly bring the tools of critical analysis to bear on poetry in attempt to accurately describe a web of interrelationships between bodies of work? And then make that web navigable, both for critics to analyze for relevance to their research and for fans of poetry to discover new favorites? What would those defining elements be? And how would such a tool affect our understanding of poetry? (And our understanding of the possibilities and limitations of classifying art?)