Tim Bray alerted me to a fascinating on-line test of pitch perception, called Test your musical skills in 6 minutes!
While working at the music and neuroimaging lab at Beth Israel/Harvard Medical School in Boston, I developed a quick online way to screen for the tonedeafness. It actually turned out to be a pretty good test to check for overall pitch perception ability. The test is purposefully made very hard, so excellent musicians rarely score above 80% correct. Give it a try!
To my amazement, I scored 94.4%.