Studying "Music From Big Pink" will help explain Danko's general approach. Very much worth giving it a lot of listening.
He created a unique feel and style. For me his playing contains elements of New Orleans backline tuba, Jamerson, brass band music, blues, and appalachian vocal/guitar styles.
I agree his spacious punchy lines, along with Levon Helm's playing and amazing singing defines their style--that and their old-timie "mystical-americana" stance, and the whitman-esque quality of the songs/lyrics. Their tempos sometimes are so so so slow.
It's like the electric bass was invented in 1865.
