Jason Isbell And The 400 Unit has been played on NTS shows including Country Hayride, with Codeine first played on 2 June 2019.

Jason Isbell and the 400 Unit are an Americana / Southern rock band originating largely from the Muscle Shoals area of Alabama, and led by former Drive-by Truckers singer / guitarist Jason Isbell.

The band consists of Isbell (vocals, guitar); Sadler Vaden (guitar); Jimbo Hart (bass); Derry DeBorja (keys, accordion); Chad Gamble (drums).

Fiddle player and singer Amanda Shires features regularly as a session player and occasional touring member.

The band is named for the colloquial name of the psychiatric ward of Eliza Coffee Memorial…