Mellotronists

after years of reading about this album on Andy Thompson's site I managed to get a copy 
from a friend (who didn't even know he had the LP) and transferred it to CDR. LOTS of 
Chamberlin by a guy named Edgemont(?) ...strings,flutes,cellos, brasses, male and female 
voices, sound efx,vibes....and very prominent in the mix. The music isn't particularly 
memorable (hard rock/psychedia) but it's worth a spin to hear early use of Harry's 
wonderful machine.
  Anyone have background on this album or Edgemont?