!
John, you've just given me a great idea! I think I may be able to swing covering this crazy cieling. I'm thinking I'll get some plastic, lay it out, roll insulation on top of it, then plastic on top of that, seal the top and bottom plastic together, So now I have a closed pocket of insulation, possobly doubling the layers. Get a few more and put them up on the cieling above the area we play at, letting the blankets and gobos I have forming the walls (as they are now) I'm thinking of this mainly for trying to keep heat in, at this point it's more about heat than sounding nice, but I'm sure it will be an improvement over the steel and aluminum...
...if only I could think of a cheap, non invasive way of keeping the structure from rattling with low frequencies, the rattling hasen't really been a problem in recording, I can work around it (basically close micing- it's really only a problem with bass and guitar cabs) But I'd rather not hear it while we rehearse.
-jhe