I'm not sure if I can answer the questions above but here are two songs that were played in the UK very shortly before the beginning of each show that are not listed above:

* Cajun Moon, by JJ Cale, off the 1974 CD "Okie"
* Drinkin' Dark Whiskey, Tellin' White Lies, off the 2007 self-titled debut by the Steeldrivers

Both are fantastic songs. I think the pre-show selections this tour are all around great.