The three of us thought we'd hit upon a cute and self-affirming way to chatter away a quarter-hour or so: what single adjective, ostensibly intended as praise, is in fact the most damning when applied to a rock and roll band? E.g. "ornate", "lush", etc.? But then Amok came up with the untoppable answer almost immediately, spoiling the fun with "cerebral". What else could the answer be? Cerebral. No more deflating description than that.