I may not have been clear enough, but I think that CC is the soundtrack of a documentary about the Bol D'Or
I guess you meant GEMM.
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BTW, Dashiell's forst album (he went by the Melmoth" moniker) called La Devanture Des Inresses is really a gem... a very different type of GonG-less diamond than Obsolete, but just as good - though a good command of French is recommended for full enjoyment.
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