This marked the period when Yes left the planet and took up residence on one of artist Roger Dean's far-off lands. The musical transition is apparent with longer instrumental passages taking over from the three-minute song format. Lengthy pieces open and close the album, and both songs have become Yes chestnuts. "Heart Of The Sunrise" and "Roundabout" are strong tracks musically, with the latter winning out as being more accessible. Without detracting from Anderson, Howe, Bruford and Wakeman, Chris Squire's bass playing is superlative throughout.