In the summer of 1970, Yes was riding a wave of creative momentum and burgeoning popularity, having just released their groundbreaking album, "The Yes Album." This record marked a significant turning point for the band, showcasing their evolving sound and marked a departure from their earlier, more traditional rock influences. It featured classics like "I've Seen All Good People" and "Starship Trooper," which would become staples in their live performances. The live recording from August 9, 1970, at the Race Course in Plumpton, captures Yes during their "The Yes Album" tour, a period where they were solidifying their identity in the progressive rock scene. This performance is particularly noteworthy as it includes early renditions of songs from the album, showcasing their improvisational prowess and chemistry on stage. The band’s adventurous spirit took shape during this time, and fans were treated to a fresh take on their evolving sound.