Steve Howe (musician) combined with Jon Anderson's vocals, Chris Squire's bass, Bill Bruford's drums, and Tony Kaye's keyboards, were seen as an essential part of the band's change in musical direction towards progressive and art rock. The album includes a live recording of Howe's solo guitar piece "Clap", recorded on 17 July at the Lyceum Theatre in London. It was a commercial breakthrough for the group. Kaye left in 1971 and was replaced by Rick Wakeman for the following album, "Fragile". This classic Yes line-up of Anderson–Howe–Squire–Bruford–Wakeman is associated with the peak of the band's early achievements. "Fragile" is one of the most
Rick Wakeman fund raising event for a church. Wakeman played the album with Remedios and his band in Caesarea, Israel in the following year as well as the Royal Albert Hall in London. Wakeman recorded "Time Machine", a concept album based on the science fiction novel "The Time Machine" by H. G. Wells, featuring Roy Wood and Tracey Ackerman as guest vocalists. The album was released in 1988; Wakeman intended to record it with an orchestra and choir and put on an ice show, but the idea was cancelled due to lack of funds. In March 1988, Wakeman and Carter sold their