Thanks for the reply. Yes, I'd say that I need 2 sides to this mesh, as you can see the other side of the cloth hanging down on the far side of the harp. Without that, I believe the result would look unrealistic. I've experimented with this up and down and have found no way to get rid of the problem. I guess transparent objects are just something we should avoid in SL. I wish that was in a manual somewhere, it would have saved me days of futile testing.