Watch the Sonora Spring: Intro & Chorus online guitar lesson by John Jorgenson from Gypsy Jazz Journeys: Sonora Spring
At the very beginning, the rhythm guitars will play whole notes for the first two phrases. When the rhythm picks up, there's a rhythm pattern that starts up.
I chose to play barre chords in the rhythm pattern as opposed to the open chords because it's easier to pick up your fingers and play through the pattern. It's a little bit harder to make it clear using the open chords. The little lick I play at the end will end every chorus in the tune.