In The Wire (no 290, April 2008), there are 8 pages on Henry Cow ("The Primer"). As usual you also get thousands of reviews and pieces on bands you've never ever heard of. This time everybody (not only subscribers) get the "free" CD "The Wire Tapper 19". Several of the tunes are "Wire Tapper exclusive edit", a.o. "Echoes of Duneden" with GF Fitzgerald & Lol Coxhill (Reel Recordings).
If you don't own any Henry Cow, albums, why not start with "Concerts"? Some of this is recorded in Oslo, and Robert Wyatt is on it too!