While the comments came later in the night, the first cover took shape as “Up On Cripple Creek,” which entered Greensky Bluegrass’ repertoire for the first time last night and served as a debut.

“Up on Cripple Creek” is a classic example of The Band's return-to-basics style, which draws from the Great American Songbook tradition.

For 44 years, the volunteer-run Cripple Creek Music Festival has drawn families to a gravel-road prairie stage for a free day of gospel, bluegrass, and community tradition that spans generations ...