> Their audio captcha (no longer available?) involved listening to 3 MIDI tunes and picking "the sad one".
Given that a large part of the world doesn't use the major/minor dichotomy, or even equal temperament, this seems like a terrible way to verify someone is a human...
My favourite recaptchas, if one can have such a thing, are the shape sequence selection ones as they don't make significant assumptions about culture or education.
Given that a large part of the world doesn't use the major/minor dichotomy, or even equal temperament, this seems like a terrible way to verify someone is a human...
My favourite recaptchas, if one can have such a thing, are the shape sequence selection ones as they don't make significant assumptions about culture or education.