1978 was a relatively quiet year for Pink Floyd in terms of public activity, but it was a critical period for their creative process. The band spent much of the year working on their next album, "The Wall," which would become one of their most ambitious and iconic projects. During this time, Roger Waters developed the concept for "The Wall," drawing from personal experiences and themes of isolation and alienation. This was also when the band started working with producer Bob Ezrin, whose expertise in rock opera and theatrical production would play a significant role in shaping the album's sound.The band's focus on creating "The Wall" led to extensive studio sessions, with Roger Waters taking a leading role in the songwriting and conceptualization. The collaborative process among band members was often challenging due to differing creative visions, but the end result would be one of Pink Floyd's most influential works.