Can you tell a MIDI, i.e. music scores played by a computer, from a performance of world-renowned virtuosi?

Take this quiz to find out:

http://www.ee.ucla.edu/~simkin/midi_or_virtuosi.html

Can you distinguish machine-translated German text from William Faulkner's prose?

Take this quiz to find out:

http://www.ee.ucla.edu/~simkin/sounds_like_faulkner.html

This may be more difficult to do than you think.

Can you distinguish true art from fake art?

Take this quiz to find out:

http://www.ee.ucla.edu/~simkin/true_art_or_fake_art.html

You will see a dozen of images.
Some of them are True Masterpieces of Abstract Art, created by Immortal Artists. They carry Profound Meanings, which are, however, beyond the apprehensions of the vulgar. The rest were produced by the author of the quiz using common software (like Microsoft Word). They mean nothing.
You are asked to decide on each of the images. Afterwards the quiz is graded automatically.