This reminded me of Louis Dow in Miami, FL discussing writing dances to go with specific songs he spins. Another caller I talked to touched on an interesting concept that more modern lyrical content has been introducing to contra dance -- the infusion of content, especially having to do with lyrics and the dimension they can add a new layer of mood to the experience.
In a traditional contra, a caller will generally approach the band and say something like, "I want the first dance to be smooth and sultry, the second one to have a lot of Petronella turns and balances, and the third one has a lot of energy," and the band agrees on tunes to play accordingly. In a contra that incorporates music with lyrics, it can go the other way -- a DJ can say, "these are the tunes and mixes I have" and the caller can plan a program to suit (or, a DJ/caller might align tunes and dances due to a confluence of names, or even write dances to the tunes).
It's a reversal of the normal work order for a contra dance, and it seems like it might open up some intriguing possibilities. I wonder if others have experimented with this as well...and whether or not dancers (besides me) notice such things. I welcome your thoughts!