Tone Deaf Test is an online test for tone deafness from music education technology company Easy Ear Company. The test gauges pitch sensitivity using questions like whether tones are the same, whether they’re going up or down, and whether one is higher or lower than another. While based on scientific research into tone deafness, Easy Ear Company notes this is not a replacement for a clinical diagnosis.
Most people who think they are tone deaf do in fact have the pitch discrimination abilities necessary to be great musicians. It is actually a lack of musical training which is to blame for their apparent difficulty judging notes.