If anyone has the inclination and wants to help with some Jerrybase testing, I have the latest incarnation of Natural Language Search up now.  Still very much a work in progress. 

Stuff like "Shows where Dark Star went into Morning Dew", "Every 1976 Morning Dew" or "What did Jerry Garcia Band open with most often?", or even more complex stuff.  It might surprise you.  It knows about all of our data. 

Try Natural Language Search now, or later via the top nav-bar Search > Natural Language Search.