give me a bouncy c

Taking a cue from the film Close Encounters of the Third Kind, a major internet retailer, we learn via Marginal Revolution, has developed a sort of tonal pass-key that admits or restricts users from collaborative projects on the basis of being in tune, with those discordant or cacophonous ones being identified as inauthentic members.
Although I like to keep my computing time quiet and on mute, I think I might prefer this sort of harmonious CAPTCHA (which is an acronym for Completely Automated Public Turing test to tell Computers and Humans Apart, which I think the machines have out smarted long ago) to the usual tests of humanity. Many of the firm’s ideas reportedly have not progressed beyond the sandbox of claims jumping but it’s nonetheless intriguing that being able to sculpt mashed potatoes into Devil’s Tower or that subterranean subterfuge might be indicative of alien visitations is certainly worthy of examination.