The fist song played, though the second is also very cool.

I gather the starting bit is just the E-chord shape, up an octave, un-barred, with a periodic step down to the 11th fret on the fourth string.
The verses are just E, then a slide up to A, repeat. Seems clear.

But the chorus is a bit strange. Those ascending chords...?

An A, then a B, then two mystery chords? Something with C# and D# roots, perhaps?
Help, please.