While 'Then Play On' is a masterpiece, beware that this is not a straight reissue of the original UK release - 2 tracks are missing and 'Oh Well' has been grafted in to a revised running order, as was done on European & US releases at time of issue. However, it will have to do until WEA or an enlightened re-issue specialist decides to issue the album in its entirity - hopefully boosted by the 'Oh Well' and 'Green Manalishi' singles.
In the meantime, as other reviewers say, marvel in the talent on show - a band at their peak.