Loves Dream by Bobby Bradford is a beautiful Emanem recording and Davidson later issued two disks of fine Bradford-Carter duets. Along with all the Evan Parker, John Stevens, Derek Bailey, Steve Lacy, Paul Rutherford, etc. Emanem gems that have already been mentioned (and be sure to hear Rutherford's Tromboleneum), there are a Lol Coxhill anthology, some Trevor Watt-Veryan Weston duets, and a Aki Takase disk that especially tickle me. There's also a terrific Agusti Fernandez piano disk on Psi - whatever he does, he's a special artist, a level above ordinary mortals (sorry, can't get to the CDs today to recite titles).
Martin Davidson has documented Rutherford, Parker, and the London scene in a wholly conscientious way over the decades - he's one of our saints.