Here's a simple jazz question. Is Lennie Bird by Tristano based on How High The Moon or Ornithology?

As you may have guessed, I like maximal information problems: so here's a score.

A contrafact of a contrafact—can't be a subcontrafact. Intracontrafact; or infracontrafact?

Anyway. The distinction allows us to trace a song genealogy—a family tree of a song.

Oh—and just in case you've not heard Lennie Bird before:

And in fact, I've made an assumption that people know what Ornithology sounds like. Sorry...

Here's my personal favourite rendition:

Lovely review of the Sonsale gig at The Sage [cc. Andy Champion, John Pope]!