Air date: 2014-09-03

Runtime: 30 min

The Season 4 premiere features the successful jamband Widespread Panic who meld southern rock, blues-rock, funk and hard rock in a stellar performance.

Air date: 2014-09-10

Runtime: 30 min

Steep Canyon Rangers perform.

Air date: 2014-09-17

Runtime: 30 min

Cellist Dave Eggar, singer Amy Lee (of Evanescence) and dance troupe Hammerstep perform.

Air date: 2014-09-24

Runtime: 30 min

Jason Isbell and the 400 Unit perform.

Air date: 2014-10-01

Runtime: 30 min

The David Grisman FolkJazz Trio perform.

Air date: 2014-10-08

Runtime: 30 min

Singer-songwriter Lucinda Williams performs.

Air date: 2014-10-15

Runtime: 30 min

The Gibson Brothers showcase their amazing harmonies and whip-crack musicianship.

Air date: 2014-10-22

Runtime: 30 min

The frontwoman and the band sing through multiple generations and genres of New Orleans grooves.

Air date: 2014-10-29

Runtime: 30 min

The eclectic jazz, funk, reggae, alt-rock guitar virtuoso joins the stellar Traveling McCourys.

Air date: 2014-11-05

Runtime: 30 min

Shovels & Rope perform.

Air date: 2014-11-12

Runtime: 30 min

Singer-songwriter Hayes Carll performs.

Air date: 2014-11-19

Runtime: 30 min

The Grammy nominee stirs up his own particular stew of folk, country-rock, pop and Western music.

Air date: 2014-11-26

Runtime: 30 min

Singer-songwriter Chip Taylor, whose songs include "Wild Thing" and "Angel of the Morning," performs.