Best known as the remote frontman of the influential indie trio Dinosaur Jr., J Mascis has also pursued a solo career, and been an occasional producer and film composer. While his work with Dinosaur Jr. is dominated by his lackadaisical vocals and crushing, high-volume guitar work, much of his solo material has seen him exploring different directions. Mascis' louder side made itself felt on two albums with his project J Mascis + the Fog, 2000's More Light and 2002's Feel So Free, but he also cut nuanced, semi-acoustic music with a more personal lyrical perspective on 2011's Several Shades of Why and 2018's Elastic Days. He revisited his back catalog in acoustic form on the concerts included in 2021's Fed Up and Feeling Strange: Live and In Person 1993-1998.