Underground Fire

Released in January 1969, this record marks a distinct change in direction for the band. The group sets aside their familiar clean guitar style in favor of thick riffs and fuzzy textures. They apply this loud, distorted treatment to tracks like Sunshine of Your Love and Born to Be Wild.

These performances show the musicians responding to the popularity of blues-based rock music during that time. The production emphasizes a heavier, more abrasive tone than their previous efforts. It documents a professional ensemble adjusting their craft to match the dominant trends of the late sixties.