Sing To God is essential (both parts), closely followed by On Land And In The Sea, all the rest are about equal, except perhaps Heaven Born… which has its share of sublime moments but overall is a lesser work. Pony by Spratleys Japs would be my third recommendation, not strictly Cardiacs but very, very special. And not forgetting the Rotten Shed DVD, which documents the last line up at their awesome peak despite the fact that it’s just a recording of a rehearsal in a shed.