Cold Winter Day - McTell played this in Vestapol tuning tuned down but Ernie is playing it in C standard. Some "jazzier" chording involved as well, and lots of riffs around those chords but basically he walks up on the treble to a C chord or partial xxx553, maybe playing a low E bass or wrapping the thumb around for a G bass, or even playing the C barre chord on which the partial is based. The he goes to C7add9: x3233x. Then an F that sounds like a maj7 chord to me, 1x3210, that then goes to an F minor, xx311x, then back to a regular C. Then to a G chord with riffs back to C and your turnaround of choice.
So I, I7add9, IVmaj7, IVmin, I, V, I and turnaround. It's a pretty arrangement that uses some Big Bill Broonzy in C kinds of things, with a thumping bass a la Mance Lipscomb, and then those jazzier chords to top it off. Fun! Though modern sounding
Call Up China is also interesting, played in the key of A but with the guitar tuned to dropped D. This is another Mance Lipscomb trick I believe. It also uses a major chord going to a minor. The I chord, A major, goes to a Amin for the main riff with a low D bass. Nice. The IV chord, D or D7, D7add9, pick your voicing, would then have the low bass root on the 6th string. The V chord, E or E7, would be played with a B in the bass on the 5th string, or you could fret the 6th string at the second fret, 222100, to get the low E bass. I don't know what this version is based on, perhaps a Mance thing I'm not familiar with.
Hope that gets you moving in the right direction.
