One of the precious early Yes albums. Not as accessible as their other music. Overall not as good as the 3 albums which preceded it (Yes Album, Fragile, Close to the Edge) or the one that followed (Relayer) but it still has its moments. It consists of 4 long movements each of which took up a single side of vinyl.The first two and the fourth have some good moments, the third is weaker I would say. However given the uniqueness of Yes, it is still well worth having if you like their early music.